1116-50446 - Staying warm beside a campfire on the Delta River while watching the aurora borealis on a frigid night; Alaska, United States of America

1116-50444 - A plume of smoke from the Oregon Lakes wildfire rises high into the sky near Delta Junction in 2019; Alaska, United States of America

1116-50447 - Watching the aurora borealis beside a campfire on Jarvis Creek in Delta Junction; Alaska, United States of America

1116-50443 - A plume of smoke from the Oregon Lakes wildfire rises high into the sky near Delta Junction in 2019; Alaska, United States of America

1116-50445 - Staying warm beside a campfire on the Delta River while watching the aurora borealis on a frigid night; Alaska, United States of America

1116-50442 - A bull moose (Alces alces) resting in a forest on Fort Greely; Alaska, United States of America

1116-50448 - An observer watching the aurora borealis points his flashlight into the sky beside a campfire on Jarvis Creek in Delta Junction; Alaska, United States of America

1116-48563 - Female hiker crosses a wooden foot bridge on her way to Gulkana Glacier, Alaska, United States of America

1116-48562 - Female hiker crosses a wooden foot bridge on her way to Gulkana Glacier, Alaska, United States of America

1116-48559 - A man paddles a packraft across Landmark Gap Lake with the Alaska Range in the distance, Alaska, United States of America

1116-48558 - A woman paddles a packraft across Landmark Gap Lake, off the Denali highway, with the Alaska Range in the distance, Alaska, United States of America

1116-48561 - A woman jumps over a swift glacial stream with the aid of a pole near Gulkana Glacier, Alaska, United States of America

1116-48560 - A wife jumps to her husband across an icy stream while hiking near Gulkana Glacier, Alaska, United States of America

1116-46907 - A man jumps onto an island of ice on Root Glacier in Wrangell-St. Elias National Park, Alaska, United States of America

1116-46911 - The silty water of the Tanana River meets the clear water of Clearwater River in Delta Junction, Alaska, United States of America

1116-46912 - Point of view shot of paddling a pack raft on Landmark Gap Lake near the Denali Highway, Alaska, United States of America

1116-46910 - A rainbow appears in the sky over a field of freshly rolled hay bales with fireweed in the foreground, Delta Junction, Alaska, United States of America

1116-46913 - A backpacker observes the midnight sun peeking through the clouds from an unnamed fork of the Atigun River still partially covered in aufeis (sheet-like ice formations) in a remote valley of the Brooks Range, Alaska, United States of America

1116-47136 - Footprints Lead Toward A Splitboard Placed At The Entrance Of An Ice Cave Within Canwell Glacier In The Alaska Range After Sunset In Winter, Alaska, United States Of America

1116-46902 - A wild American Alligator (Alligator mississippiensis) hatchling keeps a lookout in the Sebastian River, Alaska, United States of America

1116-47133 - A Man Is Silhouetted By The Entrance To A Dark Ice Cave Within Augustana Glacier In The Alaska Range, Alaska, United States Of America

1116-47134 - A Man Assembling A Tent After Sunset During A Winter Camping Trip In The Alaska Range, Near Augustana Glacier, Alaska, United States Of America

1116-47206 - A Hiker Climbs A Ridge High Above Trims Creek In A Portion Of The Alaska Range Known As The 'delta Mountains' In Early Winter, Alaska, United States Of America

1116-46908 - A hiker's boot showing the point of view looking down into the deep, blue meltwater of a glacier in Wrangell-St. Elias National Park, Alaska, United States of America

1116-47110 - The Trans-Alaska Pipeline Appears Through Fog Where It Crosses The Tanana River On A Subzero Morning, Alaska, United States Of America

1116-47132 - Hoarfrost Covers The Ceiling Of A Canwell Glacier Ice Cave In Winter, Alaska, United States Of America

1116-46903 - Sunrise over the Atlantic Ocean with the surf washing up on the shore, Indialantic, Florida, United States of America

1116-47135 - The Moon And Aurora Shine In The Night Sky Over A Snow Covered Richardson Highway South Of Delta Junction, Alaska, United States Of America

1116-47204 - The Aurora Glows Over A Moose Crossing Sign Along Sheep Creek Road, Fairbanks, Alaska, United States Of America

1116-47111 - Aurora Borealis Over Mountains Within Denali National Park On A Very Cold Winter Night. The Andromeda Galaxy Is Visible To The Left, Alaska, United States Of America

1116-46909 - A pool of water on the surface of Root Glacier in Wrangell-St. Elias National Park resembles a heart shape, Alaska, United States of America

1116-46906 - A man and the Valley of Ten Thousand Smokes is framed by the doorway of one of the Baked Mountain Huts in Katmai National Park, Alaska, United States of America

1116-46905 - Morning fog blankets the lower Valley of Ten Thousand Smokes in Katmai National Park, Alaska, United States of America

1116-39556 - Mt. Griggs rises over the ash- and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park. The ash-covered Knife Creek Glaciers can be seen coming out of the valley at right; Alaska, United States of America

1116-39578 - A backpacker hikes off-trail along the top of Stony Dome in Denali National Park in early summer; Alaska, United States of America

1116-39564 - The sun shines into a cave beneath the ice of Root Glacier in Wrangell-St. Elias National Park; Alaska, United States of America

1116-39561 - The colorful landscape of the Valley of Ten Thousand Smokes and Baked Mountain in Katmai National Park; Alaska, United States of America

1116-39555 - The eastern peak of Trident Volcano rises above the ash-covered Knife Creek Glaciers at sunset in Katmai National Park; Alaska, United States of America

1116-39585 - The Paxson Lodge sits shuttered along the Richardson Highway after closing in 2013; Alaska, United States of America

1116-39559 - Trident Volcano rises above the rugged ash-covered Knife Creek Glaciers in Katmai National Park; Alaska, United States of America

1116-39565 - Water cascades over rocks inside a cave beneath the ice of Root Glacier in Wrangell-St. Elias National Park; Alaska, United States of America

1116-39584 - A man stands silhouetted on a ridge as the sun sets behind Polychrome Mountain in Denali National Park in early summer; Alaska, United States of America

1116-39560 - A backpacker crosses the exotic landscape of the ash and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park, with Mt. Katmai (left), Trident Volcano (right), and the Knife Creek Glaciers looming in the distance; Alaska, United States of

1116-39563 - Guided groups recreate on Root Glacier in Wrangell-St. Elias National Park; Alaska, United States of America

1116-39554 - Trident Volcano rises above the ash-covered Knife Creek Glaciers at sunset in Katmai National Park; Alaska, United States of America

1116-39573 - A man observes a tranquil sunset from an alpine perch in the Alaska Range high above the Delta River; Alaska, United States of America

1116-39570 - A semi-truck ascends through Atigun Pass along the Dalton Highway; Alaska, United States of America

1116-39580 - A man points at the moon hanging over Denali from the top of a snowy ridge at sunset near Polychrome Mountain in Denali National Park; Alaska, United States of America

1116-39568 - A backpacker pauses for rest beside a puddle while crossing over an unnamed pass in the Brooks Range under the midnight sun at 12:14 a.m.; Alaska, United States of America

1116-39571 - A truck approaches Atigun Pass along the Dalton Highway with the mountains of the Brooks Range towering overhead; Alaska, United States of America

1116-39567 - A man paddles a pack raft across Donnelly Lake with Mt. Hayes towering in the distance; Alaska, United States of America

1116-39558 - Mt. Griggs rises above the ash- and pumice-covered Valley of Ten Thousand Smokes in Katmai National Park; Alaska, United States of America

1116-39553 - A man looks toward Trident Volcano through clouds while ascending the Knife Creek Glaciers in Katmai National Park; Alaska, United States of America

1116-39572 - The Trans-Alaska Pipeline crosses over tundra beneath the mountains of the Brooks Range along the Dalton Highway; Alaska, United States of America

1116-39569 - A semi-truck begins the ascent through Atigun Pass along the Dalton Highway; Alaska, United States of America

1116-39576 - A man climbs a steep ridge above Whistler Creek in the eastern Alaska Range; Alaska, United States of America

1116-39577 - A bus stirs up dust along the park road in Denali National Park while passing underneath a group of Dall sheep (ovis dalli) near the base of Polychrome Mountain; Alaska, United States of America

1116-39583 - A shuttle bus winds around cliffs near Polychrome Pass in Denali National Park; Alaska, United States of America

1116-39574 - A shirtless hiker scrambles over a craggy ridge in the eastern Alaska Range near Whistler Creek in summer; Alaska, United States of America

1116-39566 - A group of kayakers paddles on the Tanana River near Delta Junction; Alaska, United States of America

1116-39562 - A woman ice climbs on Root Glacier in Wrangell-St. Elias National Park with Mt. Blackburn in the background; Alaska, United States of America

1116-39575 - A backpacker climbs a steep ridge in the eastern Alaska Range near Whistler Creek; Alaska, United States of America

1116-39581 - A man on a snowy ridge near Polychrome Mountain in Denali National Park faces the sunset with Denali in the background; Alaska, United States of America

1116-39582 - Snowy, unnamed mountains form the backdrop behind a backpacker exploring the backcountry of Denali National Park; Alaska, United States of America

1116-39557 - A man is dwarfed by the jagged, ash-covered Knife Creek Glaciers and Trident Volcano in the Valley of Ten Thousand Smokes in Katmai National Park; Alaska, United States of America

1116-39579 - Classic view of Denali looming over a bus traveling along the road in Denali National Park near Stony Pass in early summer; Alaska, United States of America