Katmai National Park August 2017

 
The Buttress Range along the western edge of the Valley of 10,000 Smokes in Katmai National Park, viewed from the side of Baked Mountain.

The Buttress Range along the western edge of the Valley of 10,000 Smokes in Katmai National Park, viewed from the side of Baked Mountain.

When I stepped out of the bush plane and felt my foot sink into the ash and pumice, I instantly knew I was in a different place. It looked like a desert except for the blue glacier ice and waterfalls spilling down Mt. Mageik in the distance. And, unlike the desert, the breeze was cold. I was standing in the Valley of 10,000 Smokes in Katmai National Park, a land still recuperating from the devastating eruption of Novarupta in 1912. Some 25 or 30 miles away, tourists were crawling over each other trying to get shots of brown bears catching salmon. But I had this intriguing desolation all to myself, and I wouldn't see another human until my pilot returned to pick me up six days later.

After the plane took off, I began shuttling my gear to the nearby Baked Mountain Huts, a pair of huts located half-way up Baked Mountain in the heart of the valley. The huts were built in 1965 and occasionally serve as a camp for researchers, but they are available to the public for free on a first-come, first-serve basis. I passed several fragments of the huts on the side of Baked Mountain as I climbed up the slope (a sign of the intense weather frequently seen in the valley) and I sincerely hoped "blowing pumice" would not be in the forecast during my stay. I settled into the smaller of the two huts, which was a bit drafty and dark but much more comfortable than sleeping outside in the wind. With the huts as my base camp, I planned to visit the Mt. Katmai caldera and its impressive crater lake, and I also planned to spend time backpacking outside the valley on the other side of Katmai Pass where few people venture.

The smaller of the Baked Mountain Huts. Four beds, a table, storage space, and even electrical outlets if you happen to bring a generator. 

The smaller of the Baked Mountain Huts. Four beds, a table, storage space, and even electrical outlets if you happen to bring a generator. 

The next day dawned sunny and warm, and I took my time soaking in the exotic landscape as I hiked to the base of the Knife Creek Glaciers with a heavy backpack. I followed a social trail most of the way from the huts to the saddle between Baked Mountain and Broken Mountain, where I gained a sweeping view of Novarupta and the colorful valley surrounding it. The slope to the valley floor below was steep, but I practically ran down it on the soft ash. As I circled the rim surrounding the lava dome of Novarupta, I spied steam escaping from some boulders at the dome's base and naturally had to investigate. The steam was warm and carried a pungent smell of sulfur, but I couldn't see the fissure beneath the rocks from which it emanated.  

The lava dome plugging the Novarupta vent. Steam still wafts from various places on the dome.

The lava dome plugging the Novarupta vent. Steam still wafts from various places on the dome.

I continued over rolling hills of pumice and ash. Deep cuts carved into the landscape by snowmelt presented annoying obstacles, but they paled in comparison to the gorges carved into the valley floor by the River Lethe and Knife Creek which I saw from overhead on my flight in. (Harrowing jumps over those gorges are typically the crux for people who hike into the valley from the Three Forks Overlook.) The vast emptiness was contradicted by ubiquitous human footprints, but there wasn't a person to be seen. Clouds draped the peaks of Mt. Katmai and Trident Volcano, which steadily grew larger as I approached. After one final hill, the Knife Creek Glaciers came into full view, sprawling over the valley floor in a jumbled, ash-covered mess. 

The water discharging from the nearest glacier was filled with sediment, but there was snow hiding under wind-blown ash near its terminus. I scraped the ash off with my ice axe and scooped snow into my water bladder, which carried me through the next morning until I found clear running water higher up on the glacier. As the sun began to set, I pitched my tent in a quiet canyon near the foot of Whiskey Ridge with the glacier just a few dozen feet away. Incredible scenery with no people, no bears, no mosquitoes, and no wind...my kind of campsite!  

The eastern summit of Trident Volcano rises above one of the Knife Creek Glaciers near sunset. 

The eastern summit of Trident Volcano rises above one of the Knife Creek Glaciers near sunset. 

The next morning was overcast, but I thought the clouds swirling around the summits of Mt. Katmai and Trident Volcano would thin out later in the afternoon like they did the previous day, so I started following my planned route to the Mt. Katmai caldera. I’ve hiked over several rugged glacier moraines before, but the Knife Creek Glacier below Trident Volcano was on another level. Simply finding a place where I could start ascending the glacier was difficult, and I felt like a rat in a maze as I found my way around dead-ends and clawed my way over steep slopes of ice covered in loose ash. Eventually, I reached the bare ice beneath the eastern summit of Trident Volcano, where I found bright yellow-green olivine crystals sprinkled over the surface. When snow-filled crevasses began squeezing my path, I started following the ash-covered ice to my left, crossing a few hard-packed snowfields on my way to the pass between Mt. Katmai and Trident Volcano, which remained obscured by clouds.       

Ascending a steep section of ice between Trident Volcano and Mt. Katmai. The view is looking WSW toward East Trident. 

Ascending a steep section of ice between Trident Volcano and Mt. Katmai. The view is looking WSW toward East Trident. 

After I entered the clouds, I couldn't see much more than a few hundred feet in any direction. I reached the pass and took a break to eat some cheese and chocolate chips. From there, I had hoped to have a good view of the ridge leading to the peak on the western rim of the Mt. Katmai caldera (elevation 6128') and climb it if it looked manageable, but even though the ridge was right in front of me I couldn't see it. I switched to my backup plan, which was to cross over the pass and hike up the gentle slopes on the south side of the caldera the next day if the weather improved. (The usual route people take to the caldera follows one of the other Knife Creek Glaciers, but that route features crevasse danger and it looked much less pleasant in early August in person than in pictures I had seen of it taken in early summer with more snow cover.)

Pausing for some cheese at the pass between Trident Volcano and Mt. Katmai. The rounded top of Broken Mountain is barely discernible through the clouds to the right of my head.

Pausing for some cheese at the pass between Trident Volcano and Mt. Katmai. The rounded top of Broken Mountain is barely discernible through the clouds to the right of my head.

I began descending from the pass down the Wishbone Glaciers (what's the with the plural names, Katmai?) and quickly realized visibility wasn't improving as I had expected it would. The glacier also turned out to be far less benign than I had hoped. Hard-packed snow still blanketed much of its surface, and even though I felt comfortable sticking to the edge of the snow near the ash-covered moraines, there were gaping crevasses (and I mean gaping) crisscrossing the glacier on my left that dissuaded me from drifting over the snow toward Mt. Katmai. Traveling along the gnarled moraines didn't seem perfectly safe, either, as some of the crevasses that extended into the moraines were partially covered by ash bridges, and several small ash "sinkholes" I passed made me worry that one might open up at any time beneath my feet. With no landmarks available for route-finding and no way to see problematic terrain in advance, my progress was incredibly slow, and I soon found sunset approaching with no idea when or if the glacier might mellow out below. I started working my way toward the western edge of the glacier, climbing over hill after hill and taking circuitous paths around nasty crevasse mazes.

Suddenly, a mountain slope emerged from the mist in front of me. It was the edge of Trident Volcano. I crossed to the bottom of the ash-covered slope and followed it along the edge of the glacier until I found a flat spot where I could place my tent. Looking up, I could just barely see a ridge topped with craggy volcanic rocks leading up into gray nothingness. Looking around, I noticed several of those rocks had toppled down the slope and landed near my chosen campsite, so I set up my tent behind the largest boulder and hoped it would block anything that might tumble downhill while I slept.

I awoke later that night to the steady pitter-patter of rain on my tent. I shifted in my sleeping bag and heard the sloshing of water at my feet, and when I looked I saw a small puddle forming on the floor of the tent. Great, my tent is leaking. My sleeping bag seemed dry enough (except for my toes), and since there wasn’t anything I could do about it, I went back to sleep.

When I rose in the morning it was still raining. I glanced outside the tent and the visibility had deteriorated even further. Drips of water were slowly but steadily falling from the roof of the tent and my sleeping bag was damp. I waited an hour or two to see if the weather showed any signs of clearing, but there was no change. I reluctantly gave up on climbing to the caldera and decided to traverse the south side of Trident Volcano to Katmai Pass, where I expected to find drier weather or at least better visibility in the Valley of 10,000 Smokes. 

Hiking over the unfamiliar, extremely rugged terrain in poor visibility proved very laborious. I generally erred on the side of maintaining or increasing my elevation since I knew somewhere down below there were cliffs, creeks and glaciers that I wanted to avoid, and keeping the incline of the volcano to my right helped me stay pointed in the right direction. I still had to cross one narrow ash-covered glacier, which featured several steep hills of ash that I used my ice axe to help ascend. At one point, I stumbled into the fumarole field on the southern flank of Trident Volcano. I felt like I was walking on an alien moon as steam issued from yellow-green splotches on the ground all around me. I had read a paper before my visit that mentioned the volcanic gases in this area posed a potential danger to people, but the wind was blowing heavily so I didn’t think there would be any risk in continuing forward. I paid close attention for any signs of bodily distress, but I experienced no problems other than the overwhelming rotten-egg smell of sulfur forcing me to breathe through my mouth. Just in case the air was indeed toxic, I decided not to stop for a picture, which I regret because the scene was easily the most outlandish I've ever laid eyes upon. Oh, well—the image in my head will still haunt my dreams forever.

Moss grows beside a stream emerging from the lava flow on the southwest side of Trident Volcano. 

Moss grows beside a stream emerging from the lava flow on the southwest side of Trident Volcano. 

I continued circling around Trident Volcano, anxious to find a landmark. After what seemed like hours of turning slightly right and wondering if one of the shadowy bear-sized boulders that kept appearing out of the mist might turn out to be an actual bear, I finally hit the lava flows on the southwest side of the volcano, which were deposited over the years 1953-1974. Hiking over the slippery, sharp volcanic rocks would have been slow and treacherous, so I was forced to detour miles around them and give up quite a bit of elevation. I soon began seeing caribou tracks, the first tracks of any kind I had seen for two days. Then I saw something really striking: green vegetation! A stream emanating from beneath one of the lava flows had given life to moss and shrubs that appeared neon green against the drab landscape enveloped by the gray backdrop. I thought the stream might be warm, but when I reached my hand in it was unpleasantly cold. I stepped over it and quickly encountered several more streams which flowed over vivid orange rock. The vegetation near the streams became heavy, and so did the bear tracks. I encountered fresh bear scat and began to shout as I walked to avoid a surprise encounter.

When I neared the base of Mt. Mageik, the clouds lifted just enough that I could see the way forward would require a couple stream crossings before opening into a wide plain between the bases of Mt. Mageik and Trident Volcano. Bear tracks and trails were everywhere. I crossed two swift, knee-high glacial streams, and I thought after that I was nearing Katmai Pass until I checked my GPS coordinates against my map—I still had three miles and 1000 feet of elevation gain left! And there were only two hours before dark! As I gained modest elevation walking over the plain, the clouds once again engulfed me and I began relying on my InReach to point me north since every direction looked the same. For a brief moment a skinny white object appeared about a half-mile away near the lava flows to my right, but the clouds quickly snatched it from view. Was it a person? A tent? A cabin? As much as I wanted it to be an opportune shelter, I assumed it was most likely a seismic monitor or some other scientific instrument, and I continued on without investigating it. 

I crossed another sizable creek (perhaps the main branch of Mageik Creek) and followed it upstream into a valley where I began angling up the western side. When I reached an elevation equivalent to Katmai Pass, the clouds were still thick around me and the wind was blowing like crazy, and it was starting to get dark fast. My rain jacket had "wetted out" and my inner layers were damp, and I definitely couldn't rely on my drafty tent and soaking sleeping bag to keep me warm. Yet, dire as the situation may have seemed, I reasoned my worst case scenario was hiking all night in the dark to stay warm. It would at least get me to the peanut M&Ms I left at the Baked Mountain Huts sooner. 

It grew dark to the point where I started using the screen of my InReach as a flashlight in between checking it to make sure I stayed heading north. The creek running in the valley below finally caught up to me and I crossed it, and I knew Katmai Pass was incredibly close. I could only tell I had crossed the pass after I noticed I had been walking at a slight downhill incline for a lengthy time, and, disappointingly, the weather showed no sign of improving. I started following a dried up stream bed knowing it could only lead downhill, and it eventually brought me to a miniature slot canyon carved into the ash and pumice. The canyon provided the shelter from the wind I needed, so I hopped inside and used the rain fly of my tent to protect me and my pack from the light drizzle. I managed to stay marginally warm and may have even caught an hour of sleep while I waited for sunrise.

When daylight returned, I peeked over the canyon wall and couldn't have been more delighted to see Baked Mountain straight ahead. The clouds had lifted! I realized I had taken shelter between Falling Mountain and Mt. Cerberus without knowing either mountain was beside me. The weather still looked awful over Katmai Pass behind me, and the wind was still blowing fiercely, but there was sunshine in the Valley of 10,000 Smokes and I started hiking toward it like a moth to a flame. 

Drying out my sleeping bag and sweatshirt on the larger of the Baked Mountain Huts. 

Drying out my sleeping bag and sweatshirt on the larger of the Baked Mountain Huts. 

Back at the Baked Mountain Huts the sun was shining and the wind was blowing. I changed into dry clothes and hung my gear outside to dry. Completely exhausted, I relaxed at the huts for the rest of the day and read through a number of the logbook entries from the 1996 - 2006 era. (The most recent logbook volume apparently suffered water damage and was illegible.) A few entries detailed trips on the other side of Katmai Pass, and the descriptions of the terrain left me longing to go back from where I had just come—in better weather. I went to bed early that night before howling wind and rain arrived. 

Caribou tracks and an odd patch of glacier ice near East Mageik Lake.

Caribou tracks and an odd patch of glacier ice near East Mageik Lake.

On my last full day in Katmai National Park, I set out to see the Mageik Lakes, a pair of lakes about a mile apart near the base of Mt. Mageik. I started descending Baked Mountain only to realize a few hundred feet down that I left my camera behind. My legs complained heavily as I climbed back up the slope to fetch my camera, and I knew I'd be crawling my way back to the huts later. I crossed the valley floor with the wind blowing in my face, watching the low clouds drift over the lakes in the distance and hoping the rain would hold off as I plodded past colorful extinct fumaroles. I walked beside the River Lethe for a stretch where it flowed even with the valley floor rather than in a deep canyon, and in that form it looked no more intimidating than any of the other glacial creeks I've waded across.

I made it to the edge of the eastern lake just as light drizzle began falling. A medium-sized waterfall and a couple smaller streams originating from glacier ice on the northern slopes of Mt. Mageik above fed the lake, and it discharged into a 10-foot deep canyon. I walked to the end of the canyon looking for a good crossing spot, but the rain intensified and started hammering the other lake, and I was forced to give up on seeing it and its more impressive waterfalls. The rain finally cleared as I slowly climbed up Baked Mountain back to the huts, and I was treated to one of the better sunsets I've seen this summer.

Perfect weather graced my final morning in Katmai. Heavy fog filled the lower valley, but in the other direction I could finally see the entirety of Mt. Mageik, whose upper half had remained concealed during my entire trip. The dark clouds swirling over Katmai Pass behind Mt. Cerberus were gone, and the jagged peaks along Mt. Katmai's crater rim were completely unobscured. The wind had completely disappeared. I was disappointed I wouldn't get to enjoy hiking on such a nice day, but at least I didn't have to worry about my pickup being delayed by bad weather.

Morning fog blankets the lower Valley of 10,000 Smokes.

Morning fog blankets the lower Valley of 10,000 Smokes.

I decided I was only making one trip to carry my gear down to the valley floor. I put everything that could survive a good tumble into my duffel bag, then rolled the bag and my tent down the side of Baked Mountain. I carried the rest of my gear down in my backpack and retrieved my duffel bag and tent near the bottom, then found a good landing spot for the plane and made a windsock with my ice axe and a roll of toilet paper. While I waited for the plane, I carried a wash cloth and a clean shirt to the River Lethe and tried to clean up as best I could before returning to society. The plane arrived right on time and I climbed in, sad to leave but anxious to get a hot meal in King Salmon. 

I barely scratched the surface of the volcanic backcountry of Katmai National Park. It's the most unique place I've been in Alaska, and I can't wait to go back...with more food and a better tent!

The Baked Mountain Huts at sunset with Trident Volcano in the background.

The Baked Mountain Huts at sunset with Trident Volcano in the background.

 

Thayer Hut

 
Thayer Hut.

Thayer Hut.

After carrying a heavy pack over the rough moraine of Castner Glacier for seven miles, I wasn't in the mood to scale a treacherously steep and muddy slope. The sun had already set and the purple twilit sky hung over the glaciated peaks of the eastern Alaska Range surrounding me. The dark crevasse at the bottom of the slope was choked with rocks from previous mudslides and, looking up, it appeared there could be another mudslide at anytime. I had scrambled up the same slope three years before and vaguely recalled fearing for my life, but the promise of mountain luxury awaited me and I reluctantly began the ascent.

As I crested the edge of the alpine meadow at the top, there it was: the Thayer Hut. The hut is impossible to see from below on Castner Glacier, and I've encountered people who failed to find it after making the same arduous trek—probably because they imagined it sitting atop a much shorter, less steep slope. For those that do find it, it's like stumbling onto an oasis in the desert, at least for summer visitors; in winter, finding the hut can be more like waking after a heavy snowfall and realizing you have to shovel the driveway before going to work. Fresh Dall sheep tracks crossed my path as I walked the final length to the hut, and when I followed them with my eyes I found three rams sitting on the edge of the meadow. They looked puzzled as I untied the rope holding the hut's door securely closed, but they didn't run away or even stand up. A bulge in the floor prevented the door from opening more than halfway but I managed to squeeze through, then quickly dug my sleeping bag out of my pack and went to sleep. 

I awoke the next morning to something banging on the side of the hut. I looked out the window and saw two marmots scampering away across the meadow. Marmots used to occasionally chew their way through the floor of the hut and wreak havoc inside, but it seems the marmot-proofing measures undertaken over a decade ago have reduced them to nibbling on scrap wood outside the hut and the shiny aluminum sheeting which covers the hut's exterior. I didn't know what time it was, but the weather outside was unusually spectacular, so it was time to get up.

The view of Mt. Silvertip from the alpine meadow where Thayer Hut sits.

The view of Mt. Silvertip from the alpine meadow where Thayer Hut sits.

When I stepped outside, it was like stepping into the iconic opening scene of The Sound of Music. Mt. Silvertip (a popular target of climbers) towered over the meadow filled with wildflowers, shining brilliantly in a clear, blue sky. A few streams emanating from the lingering snow patches around the hut trickled over the alpine tundra. Looking over the edge of the meadow I saw a vibrant blue-green pool of water on a small bench just a few dozen feet below, with water roaring across the glacier's surface much farther down. The marmots whistled at me, an arctic ground squirrel chirped at me, and I was even yelled at by a collared pika.

I quickly began suffering from a case of "hut lassitude", a term I picked up from reading the entries of past visitors in the hut's logbook. My legs were aching from the previous day's hike and I told myself I would be more productive the rest of my trip if I rested them for a day. I spent the morning photographing in and around the hut, then spent the afternoon cooking the two pounds of frozen chicken I had brought. I tried to light the hut's 30+ year-old Coleman stove, but it was rather rusty and the fuel tank didn't seem to hold pressure when I operated the pump, so I gave up and improvised with my Jetboil to cook the chicken. I made rice as well, then buried the leftover chicken in the snow for the next couple nights' dinners. 

Rice and pan-seared chicken for dinner.

Rice and pan-seared chicken for dinner.

I got ready for bed, then curled up with the logbook and a thermos of steaming hot chocolate. The log contains decades' worth of entertaining stories, thoughts, hyperbole, and even artwork from past visitors. One backcountry skier staying at the hut wrote about witnessing the amazing March 1989 aurora borealis display caused by the biggest geomagnetic storm in recent history. A climber wrote a heart-wrenching account of losing his dog in a crevasse on the way back from White Princess in 2006. In the early 1990s, a pair of spring-breakers from Fairbanks deserted their tent on Castner Glacier within view of the meadow and hightailed it back to the highway when they encountered bitter cold (of the forty-below-zero variety), and several hut visitors expressed concern and posited humorous theories in the log about the mystery tent until a team came to retrieve it. Many of the entries from the 1960s (when the hut was built) and 1970s seemed like they could have been written yesterday; I suppose that's because fifty years later the mountains are still in the same places and everyone still relies on crampons, rope and ice axes to climb them—and yes, you can still get a greasy burger in Delta Junction on the drive back to Fairbanks. 

When I last visited Thayer Hut in July 2014, someone had donated a half-full bottle of Jameson Irish Whiskey a couple days prior marked "July 4th". Somewhat surprisingly, the bottle was still there untouched three years later. Only four or five people had left entries in the log since then, with the most recent being in September 2016 by Alaska's famed mountain runner Matias Saari. The lack of entries in recent years may simply be the result of the current logbook running out of room, but the unconsumed bottle of liquor tells a different story. 

Once upon a time, there were plenty of new routes still left to be pioneered for climbers and skiers in the "Delta Mountains" (as the surrounding mountains are nicknamed), and Thayer Hut was much easier to access when the shrinking Castner Glacier filled a greater portion of the valley. I suspect many people simply opt to camp lower on the glacier now (as I have done myself), but I worry there is also less of a draw to the hut now that its first generation of patrons has grown old and alternate forms of recreation in Alaska have grown in popularity, especially motorized off-road vehicles. It's sad to think this comfortable piece of history sitting in one of the most idyllic locations in the Alaska Range may be going to waste.

Reading the logbook. The hut is well-stocked with fuel, cooking utensils, and other gear, but some (all) of the food could use tossing.

Reading the logbook. The hut is well-stocked with fuel, cooking utensils, and other gear, but some (all) of the food could use tossing.

The next day I strolled up the northern "Silvertip" branch of Castner Glacier. Descending the steep, rocky slope on the west side of the meadow was slow, but once I reached the glacier I found easy walking on the moraine. After a short distance, bare ice appeared on my right but there were still a number of snow patches scattered around and it seemed most of them were hiding small crevasses. As I wound along a stream flowing down the surface of the glacier, I found part of a sheep jaw and several more bone fragments nearby. A climber wrote in the logbook that he found an entire sheep skeleton on the glacier while returning from climbing Mt. Silvertip about a decade prior, and I assumed these were the remnants. Perhaps the sheep was killed by a grizzly, wolf, or wolverine, all of which roam the upper reaches of Castner Glacier despite the barren landscape. It could have even died in a fall and met a fate similar to Ötzi, emerging from the glacier after being encased in ice for many years. 

Part of a sheep jaw on the surface of Castner Glacier.

Part of a sheep jaw on the surface of Castner Glacier.

I continued all the way to the base of Mt. Silvertip. Thick slabs of blue ice spilled down its heavily-glaciated southern face, and impressive waterfalls poured over the cliffs at the mountain's base. I spied what I thought was a crevasse-free, walk-up route to the summit, but I wasn't about to climb on the mountain without a partner and a rope. Rock and ice completely surrounded me, but the sound of falling rocks and rushing water coming from all directions made the lifeless landscape feel quite alive. Though it was mid-June and the sun was shining bright, my fingers still went numb working the camera, and after I stopped to eat some cheese and a protein bar for lunch I had to start hiking quickly down the glacier to warm back up. I stopped to check out a waterfall spilling over a lingering sheet of ice on the east edge of the glacier, then laboriously hopped up boulders back to the hut. 

Rock and ice near "Item Peak" above the north branch of Castner Glacier.

Rock and ice near "Item Peak" above the north branch of Castner Glacier.

That night, after laying down and closing my eyes to go to sleep, I was startled by a sudden, loud rumble. Seconds later, the hut began shaking. Earthquake! 

Before I could react, the shaking stopped. Having spent most of my life in Florida, this was the first perceptible earthquake I had ever experienced and I had no idea at the time how strong it had been. I checked UAF's Alaska Earthquake Center website when I got home and saw it was only a 2.9 magnitude quake centered on the nearby Canwell Glacier just five miles away. I visited the Lower Canwell Hut a month prior, and I imagine the shaking would have been a bit stronger over there. 

The next morning was rather cloudy, but I saw some patches of blue sky further up the eastern "White Princess" branch of Castner Glacier and decided to explore in that direction. I avoided the muddy slope I climbed on the night of my arrival and instead traversed over lower angle rock past the crevasse field on the hut's south side. A few Dall sheep ewes were grazing on the slope and they quickly retreated to nearby cliffs when they saw me, where they cautiously watched me until I was at least a quarter-mile away.

As soon as I reached bare ice, I encountered two circular snow patches on the glacier next to each other. Streams flowed into both of them but no streams came out the other side, a sure sign that moulins were lurking underneath. Moulins are deep, vertical shafts leading straight into the dark interior of a glacier, and most are wide enough for a person to fall through and some are big enough for a car to easily fit inside. I widened a small hole in the snow covering one of them and tossed some large rocks in, listening for several seconds until each one crashed against the ice in the darkness below.  

One of the narrow crevasses I hopped across on the White Princess branch of Castner Glacier. Black Cap is in the background.

One of the narrow crevasses I hopped across on the White Princess branch of Castner Glacier. Black Cap is in the background.

Farther ahead, I encountered a very narrow crevasse that ran across the entire half-mile width of the glacier. The dozens of streams running down the glacier's surface emptied into the crevasse and their collective echo sounded like a roaring waterfall even though most of the streams were barely more than a trickle. I stepped over the crevasse and continued up the ice until it became mostly covered in snow, then started walking along the bare rock of the lateral moraine. An actual roaring waterfall was carving away at the side of the glacier in one spot, and just beyond it the glacier cascaded down in a series of jagged blue walls as its slope abruptly increased. Several small crevasses began appearing on the moraine as I neared the O'Brien Icefall at the head of the valley, and I hopped over them or walked circuitous paths around them. I stayed on exposed rock as long as I could, but the crevasses became completely covered under weak snow bridges and I eventually had to stop when crossing snow became the only way forward. 

I had a clear view of Black Cap but, disappointingly, I hadn't gone quite far enough to see White Princess around the bend in the valley. As I took pictures, two jets from Eielson Air Force Base painted twisting contrails in the sky over the O'Brien Icefall and blasted out a pair of sonic booms, almost as if they were putting on a private air show for me. I expect by July it would be easy to hike all the way to the base of the icefall without having to worry about hidden crevasses, and a nearby hill would provide an amazing place to camp.  

The O'Brien Icefall.

The O'Brien Icefall.

On the return, I climbed up to the hut the same way I had descended and found it to be much easier and safer than the other two routes I tried. Drizzling rain fell the rest of the evening, but the sun peeked through the clouds just before falling behind Mt. Silvertip and I was able to snag a couple shots of the front of the hut in direct sunlight, a rarity because the sun is either behind the hut or blocked by mountains most of the day. I scanned the lower glacier for people and animals, but everything was quiet below. Four straight days of unusually great summer weather in the valley and I was the only one around to enjoy it.

The view climbing up "the easy way" to the Thayer Hut from Castner Glacier.

The view climbing up "the easy way" to the Thayer Hut from Castner Glacier.

On my final morning at the hut, I washed dishes, packed up my gear, swept the floor and wrote an entry in the log. I had gotten used to life at the hut and told myself next time I would bring more food so I could stay for an entire week or two. I measured the elevation of the hut using my InReach and found it sat around 4950 feet, a little higher than the 4800 feet quoted by the Alaska Alpine Club. I descended to the glacier below via a steep scree slope on the southwest corner of the meadow, and while it wasn't too bad going down, the footing was much too loose for me to consider going up that way in the future. I measured the elevation at the glacier to be around 4300 feet. No wonder it takes the better part of an hour to climb up to the hut. 

Even though my pack was ten pounds lighter and I was heading slightly downhill, the return trip took just as long as the forward journey since I was in no rush to leave. I stumbled upon two rock ptarmigan nests camouflaged on the glacier moraine, and both times the adorable flightless chicks peeped as they waddled away from me in multiple directions while the mother tried to get me to chase after her. The final mile to the glacier's terminus is always the toughest because the terrain is so hilly and the thin layer of soil and rock covering the ice tends to slide out from underfoot on relatively gentle inclines, and this time was no exception. I finally crested the last hill and stood looking down at the swift, turbulent water of Castner Creek below, and from there it was simply a matter of walking a short distance along the unmarked trail beside the creek back to my car. As I rounded Donnelly Dome on the drive home, I glanced to the south at Mt. Silvertip glowing in the golden evening sun, and I knew Thayer Hut was sitting empty on the other side. I hope it doesn't stay empty for long.

The Thayer Hut in the evening sun with the familiar lantern hanging in the window.

The Thayer Hut in the evening sun with the familiar lantern hanging in the window.

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