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AlpineInstitute
@alpineinstitute.bsky.social
310 followers 120 following 290 posts
The American Alpine Institute is a world-wide mountain school and guide service. It's mission is "to provide world class mountain education, exceptional guided experiences and to inspire natural preservation."

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alpineinstitute.bsky.social
Understanding the YDS Class System and the Roman Numeral Grade System in #climbing:
www.alpineinstitute.com/articles/cli...
Climbing Class and Commitment Grade
In the mountains, numbers can feel deceptively simple. A climb is labeled “Class 3” or “Grade III,” and suddenly people assume they’ve cracked the code. But
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November 17, 2025 at 3:33 PM
alpineinstitute.bsky.social
#Moose look really cool, but they can also be dangerous.

www.alpineinstitute.com/leave-no-tra...
Leave No Trace: Don't Mess with a Moose!
Every year, thousands of people head into the backcountry to experience wild places—towering peaks, glacial valleys, alpine lakes. But along with this
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November 14, 2025 at 3:40 PM
alpineinstitute.bsky.social
Check out this week's climbing, skiing, mountain rescue and outdoor news from here and abroad:

www.alpineinstitute.com/climbing-and...
Climbing and Outdoor News from here and abroad - 11/13/2025
--Purchase an Avalanche program before 11/15/2025 and save $100. Learn more!
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November 13, 2025 at 5:25 PM
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climatologist49.bsky.social
All the colors.
November 12, 2025 at 5:07 AM
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jrioux.bsky.social
Just speechless! 🥰#Northernlights #YEG #Alberta
November 12, 2025 at 3:19 AM
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searambo.bsky.social
🌅
Colorful popcorn cloud sunrise and mountains.
November 12, 2025 at 2:12 PM
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secondnaturemb.bsky.social
I really need to get to bed, but I just poked my head out the back door again. This is the view from my deck. All of this is looking south. When the geomagnetic storms are like this, the oval overshoots me and stretches into the US, which is why so many are seeing it tonight. #aurora
A bright red glow reaches up into the darkness, illuminating the silhouettes of tall slightly scraggly, spruce trees Swirls of green and red light sweep down from the sky, lighting up the forest and contrasting against the Stark silhouettes of trees Dramatic swirls of green and red light swirl down from the middle of the sky, starkly contrasting against the bear of Poplar, tall Spruce trees. Still more dramatic curtains of light sweep down from above in sheets of green and red. The tall bear poplars and spruce spires our starkly silhouetted.
November 12, 2025 at 5:16 AM
alpineinstitute.bsky.social
Should we be retro-bolting old routes that are dangrous?

#climbing #rockclimbing

www.alpineinstitute.com/retro-boltin...
Retro-Bolting Routes that are Dangerous
In 2022, a 22-year-old woman took a significant fall on the Snake Dike (5.7, III) in Yosemite National Park. The accident was the result of being off-route
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November 12, 2025 at 2:42 PM
alpineinstitute.bsky.social
Some thoughts on nylon strength and UV radiation in #climbing.
www.alpineinstitute.com/nylon-webbin...
Nylon Webbing Strength and UV Radiation
Webbing is often used to builds rappels, extend protection, and occasionally for mountain rescue operations. But not all webbing is created equal—and how long
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November 10, 2025 at 3:32 PM
alpineinstitute.bsky.social
What is a solar halo and what does it mean in the mountains?

#climbing #skiing #mountaineering #weather #mountains

www.alpineinstitute.com/solar-halos/
Solar Halos
If you’ve ever looked up on a cold, clear day and seen a perfect ring of light encircling the sun, you’ve witnessed one of the atmosphere’s most beautiful
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November 7, 2025 at 2:58 PM
alpineinstitute.bsky.social
It is time to start thinking about this... Note that this article includes videos of deep snow immersions. #skiing #snowboarding

www.alpineinstitute.com/articles/dee...
November 6, 2025 at 4:12 PM
alpineinstitute.bsky.social
Check out this week's #climbing, #skiing, #mountainrescue and #outdoornews:

www.alpineinstitute.com/climbing-and...
Climbing and Outdoor News from Here and AbRoad - 11/6/25
American Alpine Institute News:
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November 6, 2025 at 2:13 PM
Reposted by AlpineInstitute
leepetersen.bsky.social
Inside a now collapsed ice cave at the terminus of Canwell Glacier, Alaska. Daylight filters through openings in the ice, revealing the blue glow of the glacier’s interior.

Area info in my hiking guide: www.lwpetersen.com/alaska-guide...

#alaska #glacier #hiking
Photograph taken from inside an ice cave at the terminus of Canwell Glacier in Alaska. The cave ceiling and walls are made of smooth, layered ice in varying shades of blue and turquoise. Two bright openings in the distance allow daylight to enter, illuminating the sculpted patterns in the ice. The cave floor is dark with scattered gravel and rock debris, contrasting with the glowing ice surfaces above.
November 5, 2025 at 5:50 PM
alpineinstitute.bsky.social
That's Alpamayo in the Peruvian #Andes, one of the coolest mountains in the world.

www.alpineinstitute.com/programs/per...
November 5, 2025 at 4:47 PM
alpineinstitute.bsky.social
#Flapper management in #climbing.

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Flapper Management in Climbing
Every climber has been there — you’re mid-crux on perfect stone, your fingers locked into a sequence that feels like magic, and then it happens. A sharp
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November 5, 2025 at 2:27 PM
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robcruickshank.bsky.social
less rope, more nope:
youtu.be/Cyya23MPoAI?...
Climbing SOLO with Alex Honnold **INSANE EXPERIANCE**
YouTube video by Magnus Midtbø
youtu.be
November 4, 2025 at 2:48 PM
alpineinstitute.bsky.social
High on Epinephrine in Red Rock Canyon National Conservation Area. #climbing
November 4, 2025 at 2:37 PM
alpineinstitute.bsky.social
This shouldn't be too much of a crazy idea, but climbers need #firstaid training and should carry first aid kits. #climbing

www.alpineinstitute.com/first-aid-an...
First Aid and Emergency Communications
It essential for ever backcountry user to ensure that they have some first aid training, a first aid kit and a communications plan.
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November 4, 2025 at 2:33 PM
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pinknovahtx.bsky.social
A pumpkin carved with a human shaped opening, and then the guy from The Enigma of Amigara Fault by Junji Ito has been cut out with a text bubble saying “it was made for me!” And attacked to the pumpkin so it recreates the scene from the manga where the guy is climbing into the human shaped hole in a cliff side except now it’s a human shaped hole in a pumpkin.
October 31, 2025 at 3:56 AM
Reposted by AlpineInstitute
bluemoon3143.bsky.social
"I believe the world is incomprehensibly beautiful - an endless prospect of magic and wonder." Ansel Adams
Tetons and the Snake River, 2019
#MountainMonday #EastCoastKin #photography #landscape #mountains #river #ClassicMono #GrandTetonNationalPark
#AltText #ArtYear
From the Snake River Overlook in Grand Teton National Park. It is an iconic view made famous in Ansel Adams' 1942 photgraph. Taken 77 years later, this black & white photo shows a bit of a different perspective of the Tetons in the background, partially covered with snow. The plains area mid photo is still open, but the river view, in the foreground, is mostly obscured by the trees that have grown. This photo was taken in the bright light of a cloudless day but is still a magnificent scene. I left a large part of my heart in the Tetons!
November 3, 2025 at 4:07 PM
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kirkedwardmitchell.bsky.social
#stunday #wanderlust #NPS #NationalParks #landscape #landscapephotography #geology #geological #filter #polarizer #redrocks #sandstone #skyblue #contrast #composition #erosion #westcoastkin #eastcoastkin #photographersofbluesky #photography #colorpop #stunning #USNPS #colorful #strata #perspective
November 3, 2025 at 12:47 AM
Reposted by AlpineInstitute
leepetersen.bsky.social
Sunset on the winter solstice in Fairbanks, Alaska, taken around 2:30 p.m., when the sun barely clears the horizon.

#alaska #wintersolstice #fairbanks #sunset
Snow-covered spruce trees under a winter sunset in Fairbanks, Alaska. The snow on the trees is thick and heavy, bending several of them into curved shapes. The sky glows in warm orange and pink light above a low horizon, contrasting with the blue and violet tones of the snow in shadow. The photo was taken at 2:30 p.m. on the winter solstice, when daylight is brief and the sun remains low in the sky.
November 2, 2025 at 6:02 PM
Reposted by AlpineInstitute
thecolfax.bsky.social
Radical simply means grasping things at the root - Dr Angela Davis

Pic of the day

#photography
Sunset from the southern part of the island of #crete in #greece from inside of a cave #landscape #sunset #mediterranean
November 2, 2025 at 11:12 PM
alpineinstitute.bsky.social
What is YOSAR? #sar #mountainrescue #climbing #yosemite

www.alpineinstitute.com/yosemite-sea...
Yosemite Search and Rescue
Every year, climbers from around the globe flock to Yosemite Valley, the granite cathedral of our sport. The walls are impossibly tall, the cracks perfectly
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November 3, 2025 at 2:43 PM
alpineinstitute.bsky.social
We just don't talk about downclimbing enough in the #climbing world...

www.alpineinstitute.com/the-art-of-d...
The Art of Downclimbing
Scrambling is the gray area between hiking and technical climbing — that adventurous middle ground where you’re using your hands for balance and upward
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October 31, 2025 at 5:47 PM