Nostr notes by Lee Petersen

Precarious boulder in front of the Gabriel Icefall on the Gulkana ...

2026-10-26T16:06:00Z

Precarious boulder in front of the Gabriel Icefall on the Gulkana Glacier, Alaska Range. More photos and story on my Field Notes: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier

Arctic starflower (Lysimachia europaea) at Anchor Point, Alaska, ...

2026-10-25T21:48:03Z

Arctic starflower (Lysimachia europaea) at Anchor Point, Alaska, in late June 2026.

Info in my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/lysimachia-europaea-arctic-starflower/

#alaska #wildflowers #bloomscrolling

Seracs stand like mountains of ice in the Gabriel Icefall on the ...

2026-10-23T14:54:50Z

Seracs stand like mountains of ice in the Gabriel Icefall on the Gulkana Glacier in the Alaska Range. More from the icefall in my Field Notes: https://lwpetersen.substack.com/p/gulkana-ice

#alaska #hiking #glacier

Aurora over snow-covered spruce in Fairbanks in January 2015, ...

2026-10-22T16:34:38Z

Aurora over snow-covered spruce in Fairbanks in January 2015, during a nearly week-long stretch of strong aurora every night. Almost 12 years later, it's still one of my favorite photos. More of my best aurora photos, prints, and wall art are available: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Aurora-Borealis

#alaska #auroraborealis #northernlights #nightsky

Cotton candy sky over a spruce forest in Fairbanks at sunset. ...

2026-10-21T14:59:51Z

Cotton candy sky over a spruce forest in Fairbanks at sunset.

#alaska #sunset #borealforest #winter

Side view of eightpetal mountain avens, Dryas octopetala, taken ...

2026-10-20T16:25:38Z

Side view of eightpetal mountain avens, Dryas octopetala, taken in mid-June on Murphy Dome, Fairbanks, Alaska. Info in my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/mountain-avens-dryas-octopetala/

#alaska #summer #wildflowers #bloomscrolling

If you'd like to support me on this project, please consider ...

2026-10-19T16:17:11Z

In reply to nevent1q…xquy
_________________________

If you'd like to support me on this project, please consider becoming an annual subscriber or founding member on my Field Notes from the North Substack: https://lwpetersen.substack.com/subscribe

South arm of the Worthington Glacier in the Chugach Mountains, ...

2026-10-19T16:15:28Z

South arm of the Worthington Glacier in the Chugach Mountains, taken at the edge of a pond near the glacier terminus. The top photo was taken in 2011, and the bottom photo in 2018. My position and focal length are slightly different, so I matched bedrock points for visual comparison. Latest article on my new Field Notes from a changing Cryosphere: https://www.lwpetersen.com/science-and-nature/cryosphere/repeat-photography/worthington-glacier-recession/

#alaska #climatechange #glacier

I certainly wasn't expecting that an afternoon walk would ...

2026-10-19T03:11:25Z

In reply to nevent1q…gpsl
_________________________

I certainly wasn't expecting that an afternoon walk would lead me to reading a paper on how lake stars are an analog for the Jovian moon Europa's Manannán crater feature (Damhán Alla), yet two hours later, here I am.

Methane bubble lake star formation in Ballaine Lake this ...

2026-10-19T03:11:18Z

Methane bubble lake star formation in Ballaine Lake this afternoon. These form when the ice is thin enough and a thin layer of snow sits on top of it, weighing down the ice and putting pressure on the water beneath it. Water slowly pours out through a small hole in the ice; in this case, likely where methane gas was circulating warm water and keeping a spot from freezing. As the water spills out, it forms slushy dendritic arms in the snow that refreeze.

New series: Field Notes from a Changing Cryosphere I've ...

2026-10-18T22:09:07Z

New series: Field Notes from a Changing Cryosphere

I've photographed Alaska's glaciers for over a decade and watched them change faster than I expected.

The series pairs photographs with the science: how crevasses, moulins, and ice caves form and change, repeat photos that show it, and a glacier inventory with the research behind each one.

More articles coming soon. Subscribe to Field Notes From the North to support it:
https://lwpetersen.substack.com/p/field-notes-from-a-changing-cryosphere

#Alaska #Glaciers #ClimateChange #Cryosphere

Sphagnum Brownie (Hypholoma elongatum), taken in early September ...

2026-10-18T15:55:45Z

Sphagnum Brownie (Hypholoma elongatum), taken in early September in Fairbanks, Alaska. More fungi from this fall:https://lwpetersen.substack.com/p/barely-taller-than-the-moss

#alaska #macro #mushroom #fungi

Sure, thanks for asking. If you don't mind including a link ...

2026-10-17T17:44:25Z

In reply to nevent1q…4xpx
_________________________

Sure, thanks for asking. If you don't mind including a link back to my photography site, I'd appreciate it: https://photos.lwpetersen.com/

A lone gull on a blue and white iceberg drifting in Columbia Bay, ...

2026-10-17T17:37:13Z

A lone gull on a blue and white iceberg drifting in Columbia Bay, near Valdez, Alaska. In my Glaciers and Icebergs Gallery: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Glaciers

#alaska #blueice #iceberg #valdez

Blue ice exposed in fresh snow where a meltwater stream has cut a ...

2026-10-15T16:23:10Z

Blue ice exposed in fresh snow where a meltwater stream has cut a deep channel into the Gulkana Glacier, taken in late September. Phelan Creek, originating at the Gulkana terminus, trails off in the distance. Story and photos in my Field Notes: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier

Aurora, blue glacier ice, the first wildflowers after breakup. My ...

2026-10-14T21:44:01Z

Aurora, blue glacier ice, the first wildflowers after breakup. My 2027 Alaska wall calendar gathers my favorite images from the past year and is out now.

Every calendar sold goes directly into what I create, from vehicle costs to website hosting, and keeps the writing and photography coming to you.

https://lwpetersen.substack.com/p/2027-alaska-wall-calendar

#Alaska #Aurora #NorthernLights #Photography

Aurora in the moonlight in early February in Fairbanks, Alaska. ...

2026-10-14T18:01:31Z

Aurora in the moonlight in early February in Fairbanks, Alaska.

https://photos.lwpetersen.com/Galleries/Alaska-Photos/Aurora-Borealis

#alaska #fairbanks #auroraborealis

Ridges and mountains over College Glacier in the eastern Alaska ...

2026-10-13T15:24:31Z

Ridges and mountains over College Glacier in the eastern Alaska Range.

Trip story and photos in my Field Notes: https://lwpetersen.substack.com/p/weekend-in-the-deltas

#alaska #glacier #hiking

Sunset over Cook Inlet from Anchor Point, Alaska, in June. Mt. ...

2026-10-12T16:19:25Z

Sunset over Cook Inlet from Anchor Point, Alaska, in June. Mt. Iliamna on the left.

More photos and story from the trip on my Field Notes: https://lwpetersen.substack.com/p/homer-sunsets-eagles-and-flowers

#alaska #sunset #beach

Aurora reflecting over Ballaine Lake in Fairbanks, Alaska, in ...

2026-10-11T16:28:13Z

Aurora reflecting over Ballaine Lake in Fairbanks, Alaska, in late September.

Sixteen years of shooting the northern lights in my Aurora Gallery: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Aurora-Borealis

#alaska #auroraborealis #northernlights #reflection

Sunlight hitting the aspen leaves. Taken in mid-September in ...

2026-10-09T15:22:09Z

Sunlight hitting the aspen leaves. Taken in mid-September in Fairbanks.

https://photos.lwpetersen.com/

#alaska #fall #fallcolors

Aurora corona over the Goldstream Valley in Fairbanks, taken in ...

2026-10-07T16:54:26Z

Aurora corona over the Goldstream Valley in Fairbanks, taken in January.

https://photos.lwpetersen.com/Galleries/Alaska-Photos/Aurora-Borealis

#alaska #auroraborealis #northernlights #fairbanks

Summer in Columbia Bay, near Valdez, Alaska, facing the Columbia ...

2026-10-06T16:51:14Z

Summer in Columbia Bay, near Valdez, Alaska, facing the Columbia Glacier, one of the fastest-retreating tidewater glaciers in the world. More of my Glacier and Iceberg Photography: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Glaciers

#alaska #glacier #valdez #iceberg

Four photos in my Fine Art Gallery that I haven't updated in ...

2026-10-05T16:50:07Z

Four photos in my Fine Art Gallery that I haven't updated in a few years, but I will hopefully sit down with them next week for an overhaul. Check out the current photos here: https://photos.lwpetersen.com/Galleries/Abstract-and-Fine-Art

(1)Whiteout conditions near McCallum Peak in the Alaska Range
(2)Cascade at the Worthington Glacier in the Chugach
(3)Snowflake macro in Fairbanks
(4)Birch leaf suspended in a spider web

#alaska #phototography

Prints, wall art, and digital downloads from the day are ...

2026-10-04T16:35:54Z

In reply to nevent1q…vx5r
_________________________

Prints, wall art, and digital downloads from the day are available on my photography website: https://photos.lwpetersen.com/Galleries/Trips/2026/Granite-Tors-Impromptu-Hike

Sunlight moves across the tundra and the Asgard Tor at Granite ...

2026-10-04T16:30:15Z

Sunlight moves across the tundra and the Asgard Tor at Granite Tors in the Chena River State Rec Area, Alaska. Photos and story on my Field Notes Substack: https://lwpetersen.substack.com/p/impromptu-evening-at-granite-tors

#alaska #hiking #fall #autumn

Aurora from my driveway a few minutes ago. Yay! #alaska ...

2026-10-04T09:09:14Z

Aurora from my driveway a few minutes ago. Yay!

#alaska #auroraborealis #northernlights #fairbanks

Another shot of the sunset over Cushman Lake at the Tanana Lakes ...

2026-10-03T17:51:56Z

Another shot of the sunset over Cushman Lake at the Tanana Lakes Rec Area, taken a couple of weeks ago. Check out all of my most recent photos here: https://photos.lwpetersen.com/Recent-Photos

#alaska #sunset #reflection

Looking into and out of the glacier cave we found in the Gulkana ...

2026-10-03T17:35:25Z

Looking into and out of the glacier cave we found in the Gulkana Glacier last weekend. It was really cool to drop so deep into one, along a waterfall, the whole way down. More photos, videos, and story on my Field Notes Substack: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier

The edge of the Gabriel Icefall on the Gulkana Glacier with fresh ...

2026-10-02T16:23:47Z

The edge of the Gabriel Icefall on the Gulkana Glacier with fresh snow last Saturday. Photos and story on my Field Notes Substack: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier #fall

A Dall sheep ewe in Denali National Park between East Fork and ...

2026-10-01T16:55:16Z

A Dall sheep ewe in Denali National Park between East Fork and Polychrome Pass, taken on a bikepacking trip in early May. More wildlife photos in my gallery here: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Wildlife

#alaska #wildlife #dallsheep #bikepacking

Steller sea lions resting on Glacier Island near Valdez, Alaska. ...

2026-09-30T18:07:35Z

Steller sea lions resting on Glacier Island near Valdez, Alaska.

#alaska #wildlife

View from the base of the Gabriel Icefall near a small outflow ...

2026-09-29T17:00:28Z

View from the base of the Gabriel Icefall near a small outflow stream. The glacier fans out where it leaves the geologic constriction of the mountain and cliffside. The crevasses running down the glacier are longitudinal crevasses, or splaying crevasses, that form because the ice is spreading out. Taken on Saturday.

In my Field Notes from the North: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier #snow

Thanks! And oof, yeah, that's scary. Exactly what I wanted to ...

2026-09-28T17:11:48Z

In reply to nevent1q…wvuv
_________________________

Thanks! And oof, yeah, that's scary. Exactly what I wanted to avoid if they had gone into the brush.

A grizzly sow stood to get a better look at us from a distance on ...

2026-09-28T16:41:51Z

A grizzly sow stood to get a better look at us from a distance on Saturday night. It was getting too dark to get any good photos of her or her two cubs. More photos from the hike and notes on my Substack: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #wildlife #hiking #bear

Latest post on my Field Notes. Such a beautiful way to end the ...

2026-09-28T07:34:48Z

Latest post on my Field Notes. Such a beautiful way to end the summer hiking season in the Alaska Range: https://lwpetersen.substack.com/p/snow-glacier-caves-and-bears

#alaska #hiking #glacier #wildlife

Had a great day in the Alaska Range yesterday. Full of glaciers, ...

2026-09-27T23:09:38Z

Had a great day in the Alaska Range yesterday. Full of glaciers, snow, crevasses, glacier caves, ponds, and grizzly bears. Write-up with more photos coming soon in my Field Notes From The North: https://lwpetersen.substack.com/

#alaska #hiking #glacier #glaciercave

McCallum Peak in the Alaska Range. Taken at 3 am in early July on ...

2026-09-26T15:40:20Z

McCallum Peak in the Alaska Range. Taken at 3 am in early July on what turned out to be a very long day. Story on my Field Notes Substack: https://lwpetersen.substack.com/p/just-going-along

#alaska #hiking #glacier

Rufous milkcap (Lactarius rufus) in Fairbanks, Alaska. More in my ...

2026-09-25T18:13:52Z

Rufous milkcap (Lactarius rufus) in Fairbanks, Alaska. More in my fungi gallery: https://photos.lwpetersen.com/Macro/Fungi

#alaska #mushrooms #fungi #macro

Some fall foliage around Cushman Lake at the Tanana Lakes ...

2026-09-24T16:42:12Z

Some fall foliage around Cushman Lake at the Tanana Lakes Recreation Area in Fairbanks, taken shortly after the fiery sunset a couple of nights ago.

Check out more of my recent photos here: https://photos.lwpetersen.com/Recent-Photos

#alaska #fall #autumn #sunset

Western columbine (Aquilegia formosa) along the Harding Icefield ...

2026-09-23T17:09:57Z

Western columbine (Aquilegia formosa) along the Harding Icefield Trail in late June. Info in my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/western-columbine-aquilegia-formosa/

#alaska #wildflowers #bloomscrolling #hiking

Mt. Prindle and the Windchimes in the White Mountains National ...

2026-09-22T18:16:20Z

Mt. Prindle and the Windchimes in the White Mountains National Recreation Area, Alaska, back in early June.

https://lwpetersen.substack.com/p/overnight-to-the-chimes

#alaska #hiking

Sunset tonight over Cushman Lake at Tanana Lakes Recreation Area ...

2026-09-22T05:34:35Z

Sunset tonight over Cushman Lake at Tanana Lakes Recreation Area in Fairbanks, Alaska.

#alaska #fall #sunset

Mt. Margaret in Denali National Park back in August. Story and ...

2026-09-21T18:35:22Z

Mt. Margaret in Denali National Park back in August. Story and more photos in my Field Notes: https://lwpetersen.substack.com/p/evening-on-mt-margaret

#alaska #hiking #denalinationalpark #landscape

A small stream in the tundra at Hatcher Pass from last weekend. A ...

2026-09-20T18:08:12Z

A small stream in the tundra at Hatcher Pass from last weekend. A few more photos and story about the trip to support our youth climbing team and a couple of walks in along the way: https://lwpetersen.substack.com/p/team-support-and-a-couple-of-walks

#alaska #hiking #landscape

One of the East Group Tors at Granite Tors in the Chena River ...

2026-09-18T15:14:45Z

One of the East Group Tors at Granite Tors in the Chena River State Recreation Area. Taken a couple of weeks ago, when the autumn foliage in the tundra was near peak.

Story and more photos in my Field Notes Substack: https://lwpetersen.substack.com/p/impromptu-evening-at-granite-tors

#alaska #hiking #fallfoliage

Looking over the Savage River Valley from the Alpine Trail back ...

2026-09-18T06:48:02Z

Looking over the Savage River Valley from the Alpine Trail back in early March.

#alaska #hiking #winter

Long exposure of Falls Creek along Turnagain Arm in Anchorage, ...

2026-09-16T17:14:13Z

Long exposure of Falls Creek along Turnagain Arm in Anchorage, Alaska. Taken in mid-October after the leaves had fallen.

https://photos.lwpetersen.com/Portfolio-Images

#alaska #hiking #fall #waterfall

The last 4 photos in my 2027 Alaska Wall Calendar. Eastern fairy ...

2026-09-15T18:35:33Z

The last 4 photos in my 2027 Alaska Wall Calendar.
Eastern fairy slippers (Calypso bulbosa) in Fairbanks, Alaska [May 2026]
Bald eagle on the beach at Anchor Point, Alaska [June 2026]
Golden light on the Granite Tors near Fairbanks, Alaska [May 2025]
Canwell Glacier and Institute Peak in the Alaska Range [February 2026]
Get the calendar here: https://lwpetersen.substack.com/p/2027-alaska-wall-calendar

#alaska #wildflowers #wildlife #landscape

A cow moose feeding in a pond near an American wigeon in the ...

2026-09-15T16:14:24Z

A cow moose feeding in a pond near an American wigeon in the Chena River State Rec Area, Alaska.

#alaska #wildlife #moose

Took a walk along the Savage River last night with Cassidy on our ...

2026-09-14T16:37:46Z

Took a walk along the Savage River last night with Cassidy on our way home from Anchorage, where our youth climbing team had a qualifying competition on Saturday. Super proud of the kids; three qualified for USA Climbing Regionals! It was a busy weekend with a lot of driving, but we still found some quiet time to write and take a couple of walks. I've got a few photos from our stops in Hatcher Pass and Denali here: https://photos.lwpetersen.com/Galleries/Trips/2026/Hatcher-and-Savage-River-with-Cassidy

#alaska #hiking #denali

McGinnis Peak in the Alaska Range towers over the Black Rapids ...

2026-09-13T17:22:37Z

McGinnis Peak in the Alaska Range towers over the Black Rapids Glacier. Freshly covered ice foliation, likely from sedimentary stratification in the accumulation area, creates a rippled surface in the light.

https://www.lwpetersen.com/alaska-information/black-rapids-glacier/

#alaska #glacier #mountains

A little reflection under Microdot Peak at Hatcher Pass, Alaska, ...

2026-09-12T21:50:07Z

A little reflection under Microdot Peak at Hatcher Pass, Alaska, last night.

#alaska #hiking

Looking over the Gulkana Glacier in the Eastern Alaska Range, ...

2026-09-11T17:32:07Z

Looking over the Gulkana Glacier in the Eastern Alaska Range, Snow White in the background. Photo was taken in late July of this year. Story and more photos on my Field Notes Substack: https://lwpetersen.substack.com/p/weekend-in-the-deltas

#alaska #hiking #glacier

Inside one of the glacier caves we visited this summer in the ...

2026-09-10T17:25:45Z

Inside one of the glacier caves we visited this summer in the Alaska Range. Story and photos here: https://lwpetersen.substack.com/p/three-days-in-the-alaska-range-day

#alaska #glacier #climatechange #hiking

Haha, he'd fit right in with some circles today!

2026-09-09T17:17:22Z

In reply to nevent1q…6aet
_________________________

Haha, he'd fit right in with some circles today!

Aurora from the Granite Tors Trail in late March of 2015. #alaska ...

2026-09-09T17:15:00Z

Aurora from the Granite Tors Trail in late March of 2015.

#alaska #auroraborealis #northernlights #nightsky

Set out Sunday evening to photograph mushrooms and ended up ...

2026-09-08T18:29:51Z

Set out Sunday evening to photograph mushrooms and ended up chasing light across the tors instead. The Asgard Tor in full fall color, Granite Tors Trail. Story and more photos in my Field Notes Substack: https://lwpetersen.substack.com/p/impromptu-evening-at-granite-tors

#alaska #hiking #fallColors #granitetors

Cowboy's handkerchief (Hygrophorus eburneus) along the UAF ...

2026-09-07T17:03:57Z

Cowboy's handkerchief (Hygrophorus eburneus) along the UAF Trail System. I've been out shooting fungi a bit over the last couple of weeks. Check out some of the photos from Saturday in my latest Field Notes: https://lwpetersen.substack.com/p/barely-taller-than-the-moss

#alaska #fungi #mushrooms #macro

Cotton candy sunset in Miller Creek near the terminus of the ...

2026-09-06T17:30:51Z

Cotton candy sunset in Miller Creek near the terminus of the Canwell Glacier in the Alaska Range.

#alaska #sunset #hiking

The rain is slowing down. Let's go find mushrooms. ...

2026-09-06T02:06:51Z

The rain is slowing down.
Let's go find mushrooms.

A red rainbow at sunset near the Donnelly Creek Campground, south ...

2026-09-05T22:22:21Z

A red rainbow at sunset near the Donnelly Creek Campground, south of Delta Junction. Mainly the longer wavelengths remain when the sun passes through so much atmosphere low on the horizon.

#sunset #alaska #atmosphericoptics

Descending toward College Creek in the Alaska Range. The ...

2026-09-05T20:09:19Z

Descending toward College Creek in the Alaska Range. The delineation of rough texture on the valley side displays the glacier trimline and the historic elevation of the surface of College Glacier that once filled this valley, whose terminus is now 4 miles higher up the valley. More photos and story in my Field Notes from the North on Substack: https://lwpetersen.substack.com/p/weekend-in-the-deltas

#alaska #mountains #glacier #hiking #climatechange

Hiking in the Hoodoos region in the Alaska Range with views of ...

2026-09-05T18:50:33Z

Hiking in the Hoodoos region in the Alaska Range with views of the Gulkana and College Glaciers.

#hiking #alaska #summer #glacier

A large active moulin on the Canwell Glacier in the eastern ...

2026-09-04T14:51:52Z

A large active moulin on the Canwell Glacier in the eastern Alaska Range.

#alaska #hiking #glacier

A water-filled moulin on the Gakona Glacier in the Alaska Range. ...

2026-09-03T16:23:20Z

A water-filled moulin on the Gakona Glacier in the Alaska Range.

#alaska #hiking #glacier

Anderson Falls emptying into Prince William Sound near Valdez, ...

2026-09-02T17:05:52Z

Anderson Falls emptying into Prince William Sound near Valdez, Alaska. It's one of those places that are so beautiful that the weather doesn't seem to matter.

#alaska #waterfall #valdez

May-August from my 2027 Alaska Wall Calendar (by calendar month, ...

2026-09-01T16:57:48Z

May-August from my 2027 Alaska Wall Calendar (by calendar month, not season). Sunset at anchor point, hoary marmot on a small tor near Wickersham Dome, seracs in the Gabriel Icefall on the Gulkana Glacier, evening light over Fairangel Creek at Hatcher Pass. Stories+ordering info here: https://lwpetersen.substack.com/p/2027-alaska-wall-calendar

#alaska #hiking #glacier #wildlife

A small arch in the seracs of the Gabriel Icefall on the Gulkana ...

2026-08-31T17:14:25Z

A small arch in the seracs of the Gabriel Icefall on the Gulkana Glacier, eastern Alaska Range. Photos and story in my Field Notes From the North: https://lwpetersen.substack.com/p/incredible-day-on-the-gulkana

#alaska #glacier #hiking

I went out to take mushroom photos today, but only managed to get ...

2026-08-30T22:29:25Z

I went out to take mushroom photos today, but only managed to get two before the rain started falling pretty hard. Baeospora myosura (conifercone cap) and Tricholoma virgatum.

All my recent photos: https://photos.lwpetersen.com/Recent-Photos

#alaska #fairbanks #mushrooms #fungi #macro

Jan-Apr from my 2027 Alaska Wall Calendar (by calendar month, not ...

2026-08-30T18:11:09Z

Jan-Apr from my 2027 Alaska Wall Calendar (by calendar month, not season). Spire Cove, autumn color in muskeg on the north side of the Alaska Range, a boulder on College Glacier, and aurora at Angel Rocks. Stories+ordering info here: https://lwpetersen.substack.com/p/2027-alaska-wall-calendar

#alaska #hiking #auroraborealis #glacier

My 2027 Alaska Wall Calendar is done and ready for ordering. ...

2026-08-30T01:06:27Z

My 2027 Alaska Wall Calendar is done and ready for ordering. Check out the stories behind all the photos or order the calendar here: https://lwpetersen.substack.com/p/2027-alaska-wall-calendar

#alaska #glacier #wildlife #landscape #hiking

Aurora filling the sky in early October from Fairbanks, Alaska. ...

2026-08-29T19:54:44Z

Aurora filling the sky in early October from Fairbanks, Alaska. It's been a pretty cloudy start to the aurora season so far this year; hopefully we get some clear skies soon!
https://photos.lwpetersen.com/Galleries/Alaska-Photos/Aurora-Borealis

#alaska #auroraborealis

Out in the Gabriel Icefall of the Gulkana Glacier in the Eastern ...

2026-08-28T14:54:25Z

Out in the Gabriel Icefall of the Gulkana Glacier in the Eastern Alaska Range. More photos and story with some repeat photography showing glacier changes: https://lwpetersen.substack.com/p/gulkana-ice

#alaska #glacier #climatechange #hiking

Anchor Point, Alaska sunset from late June. Photos and story from ...

2026-08-27T18:25:34Z

Anchor Point, Alaska sunset from late June. Photos and story from the trip in my Field Notes from the North: https://lwpetersen.substack.com/p/homer-sunsets-eagles-and-flowers

#sunset #alaska #homer #beach

I’ve been trying to find time to photograph mushrooms before ...

2026-08-27T17:46:48Z

I’ve been trying to find time to photograph mushrooms before the cold sets in, but work keeps eating the days. I found a few yellow fieldcaps (Bolbitius titubans) while on a walk with a friend over the weekend. Hoping to carve out time for it soon, because it’s already getting pretty chilly in Fairbanks. I’ve already had to kick the heater on a few times in the cabin this week.

https://photos.lwpetersen.com/Macro/Macro-Portfolio

#alaska #macro #fungi #mushrooms

On the steep climb toward Mt. Margaret in Denali National Park on ...

2026-08-27T16:58:27Z

On the steep climb toward Mt. Margaret in Denali National Park on Sunday night.

Read about it in my Substack: https://lwpetersen.substack.com/p/evening-on-mt-margaret

#alaska #hiking #denali #mountains

Apetalous catchfly (Silene uralensis). Photographed on Mt. ...

2026-08-26T17:14:04Z

Apetalous catchfly (Silene uralensis). Photographed on Mt. Margaret in Denali National Park on Sunday.

Info in my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/silene-uralensis-apetalous-catchfly/

#alaska #bloomscrolling #wildflowers #hiking #denali

My latest post on Field Notes from the North. Late-season ...

2026-08-26T08:20:25Z

My latest post on Field Notes from the North. Late-season flowers, caribou, and tundra. Fall is coming fast in the Alaska Interior. Read it here: https://lwpetersen.substack.com/p/evening-on-mt-margaret

#alaska #hiking #denali

Tonight’s sunset over Ballaine Lake in Fairbanks, Alaska. ...

2026-08-26T05:47:39Z

Tonight’s sunset over Ballaine Lake in Fairbanks, Alaska.

#alaska #fairbanks #sunset

Cassidy on the way to Mt. Prindle in the White Mountains National ...

2026-08-25T17:49:38Z

Cassidy on the way to Mt. Prindle in the White Mountains National Recreation Area in early August.

Read about the trip in my Field Notes from the North: https://lwpetersen.substack.com/p/late-hike-on-mt-prindle

#alaska #hiking #summer

Five bull caribou on Mt. Margaret last night in Denali National ...

2026-08-24T18:47:55Z

Five bull caribou on Mt. Margaret last night in Denali National Park. I've got a lot of photos to share from this quick trip, but I'll have to wait til tonight to edit and post them, as I'm dealing with some camera issues at the moment.

#alaska #wildlife #denali #hiking #caribou

Story and more photos on my Field Notes from the North: ...

2026-08-23T17:44:12Z

In reply to nevent1q…tff6
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Story and more photos on my Field Notes from the North: https://lwpetersen.substack.com/p/three-days-in-the-alaska-range-day

Compilation of video from my trip with @cassidy_meyer16 to the ...

2026-08-23T17:37:58Z

Compilation of video from my trip with @cassidy_meyer16 to the glacier caves on the Canwell moraine in early June.

https://www.youtube.com/shorts/MZXpA9_5lBc

#alaska #glacier #glaciercave #hiking

A small icefall over the Loket Tributary to the Black Rapids ...

2026-08-22T16:46:43Z

A small icefall over the Loket Tributary to the Black Rapids Glacier in the eastern Alaska Range, taken in early spring.

https://www.lwpetersen.com/alaska-information/black-rapids-glacier/

#alaska #mountains #glacier

Sunset over Ballaine Lake in Fairbanks, Alaska. ...

2026-08-22T07:45:18Z

Sunset over Ballaine Lake in Fairbanks, Alaska. https://photos.lwpetersen.com/Portfolio-Images

#alaska #sunset #fairbanks

Descending to Fairangel Creek at Hatcher Pass in early July. Read ...

2026-08-21T15:12:19Z

Descending to Fairangel Creek at Hatcher Pass in early July. Read about the trip and the hike on my Substack: https://lwpetersen.substack.com/p/getting-steep

#alaska #hiking #mountains

My latest 3 wildflower posts and an update on my Alaska ...

2026-08-20T20:12:23Z

My latest 3 wildflower posts and an update on my Alaska Wildflower Guide on my Field Notes from the North: https://lwpetersen.substack.com/p/latest-three-wildflower-posts

#alaska #wildflowers #bloomscrolling

Tufted vetch, more commonly called bird vetch in Alaska (Vicia ...

2026-08-20T15:52:21Z

Tufted vetch, more commonly called bird vetch in Alaska (Vicia cracca). Native to most of Eurasia, it's pretty, but it's also a highly invasive weed in North America. Introduced as a forage crop in the Fairbanks and Palmer areas.

The latest addition to my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/vicia-cracca-tufted-vetch/

#alaska #wildflowers #bloomscrolling #flora

Seracs at the edge of the Gabriel Icefall on the Gulkana Glacier. ...

2026-08-19T20:35:13Z

Seracs at the edge of the Gabriel Icefall on the Gulkana Glacier. I've written about changes in this and a nearby icefall over the past few years on my latest post: https://lwpetersen.substack.com/p/gulkana-ice

#alaska #hiking #climatechange #glacier

Potentially, I hope.

2026-08-19T05:08:05Z

In reply to nevent1q…894h
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Potentially, I hope.

Grass of Parnassus (Parnassia palustris). With my backlog of trip ...

2026-08-18T18:57:20Z

Grass of Parnassus (Parnassia palustris). With my backlog of trip reports complete, I'm finally spending some time refocusing on my Alaska Wildflower Guide. This has been one of my largest ongoing projects, check it out here: https://www.lwpetersen.com/alaska-wildflowers/

#alaska #bloomscrolling #wildflowers #flora

I’m finally caught up on all my trip writing from the last ...

2026-08-17T18:04:07Z

I’m finally caught up on all my trip writing from the last year. It’s simultaneously relieving and stressful (because I need to go do some new stuff now). Going to share a bunch of the things I’ve done over the last year, in no particular order. This one was from the end of last summer.

https://lwpetersen.substack.com/p/new-photo-series-late-summer-in-alaska

#alaska #hiking #mountains

A Dall sheep ewe watches as we pass her by bike on the Park Road ...

2026-08-17T17:40:59Z

A Dall sheep ewe watches as we pass her by bike on the Park Road in Denali in early spring, before the buses start to run.

In my wildlife gallery: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Wildlife

#alaska #wildlife #denali #bikepacking

Arctic gentian (Gentiana algida) in Nome Creek, taken on the way ...

2026-08-17T04:22:13Z

Arctic gentian (Gentiana algida) in Nome Creek, taken on the way to Mt. Prindle in the White Mountains National Recreation Area, Alaska. The latest addition to my Alaska Wildflower Guide: https://www.lwpetersen.com/alaska-wildflowers/gentiana-algida-arctic-gentian/

#alaska #wildflowers #bloomscrolling #flora

Haha, it was actually borderline uncomfortably warm in this spot, ...

2026-08-16T18:32:55Z

In reply to nevent1q…8c05
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Haha, it was actually borderline uncomfortably warm in this spot, especially since we couldn't get out of the sun and a ridge to our north blocked the cooler katabatic wind.

Ice cliffs on the Gabriel Icefall, with three of us at the base ...

2026-08-16T18:25:35Z

Ice cliffs on the Gabriel Icefall, with three of us at the base for scale. This was one stop on a long day on the Gulkana Glacier last weekend. I wrote up the trip with a lot of photos and video, including five-year repeat photography showing a big change on a tributary.

https://lwpetersen.substack.com/p/gulkana-ice

#alaska #hiking #glacier #climatechange

Hiking through some of the coolest glacier views I've been ...

2026-08-16T01:51:12Z

Hiking through some of the coolest glacier views I've been on, in a place I frequent multiple times a year. One of my longest posts yet, with tons of media in my newest Field Notes: https://lwpetersen.substack.com/p/gulkana-ice

Icebergs calved from the retreating Columbia Glacier in Columbia ...

2026-08-15T16:44:32Z

Icebergs calved from the retreating Columbia Glacier in Columbia Bay, a fjord in Prince William Sound near Valdez, Alaska.

In my Glaciers and Icebergs gallery: https://photos.lwpetersen.com/Galleries/Alaska-Photos/Glaciers

#alaska #iceberg #glacier

Lots of photos and story from Mt. Prindle in early August on my ...

2026-08-14T08:18:23Z

Lots of photos and story from Mt. Prindle in early August on my Field notes from the north: https://lwpetersen.substack.com/p/late-hike-on-mt-prindle

#alaska #hiking