Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Browse images from a wide range of science topics covered by USGS. All items in this gallery are considered public domain unless otherwise noted.
An emaciated Common Murre lays on the laboratory table during a necropsy to determine the cause of death for a massive die-off of murres in 2015/2016.
An emaciated Common Murre lays on the laboratory table during a necropsy to determine the cause of death for a massive die-off of murres in 2015/2016.
Tufted Puffin, the species most affected by a recent seabird die-off in the Pribilof Islands, AK. Near Dutch Harbor in the Aleutian Islands, Alaska
Tufted Puffin, the species most affected by a recent seabird die-off in the Pribilof Islands, AK. Near Dutch Harbor in the Aleutian Islands, Alaska
A layout illustration of the R/V Alaskan Gyre deck.
A layout illustration of the R/V Alaskan Gyre deck.
Glacier Creek bridge
Salmon River is one of the transboundary watersheds of Southeast Alaska.
Salmon River is one of the transboundary watersheds of Southeast Alaska.
Kashwitna River sonar on a bridge
Kashwitna River sonar on a bridge
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
Adult polar bear walking across a recently overwashed barrier island during a large Arctic storm in September 2016. The barrier island is offshore of Barter Island on Alaska’s north coast.
Pacific Golden-Plover standing on rocks near Big Creek, Alaska.
Pacific Golden-Plover standing on rocks near Big Creek, Alaska.
Two limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Two limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
USGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
USGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
The Agashashok River and Asik watershed
The Agashashok River and Asik watershed
Lemon Creek Glacier is located at the southernmost tip of the Juneau Icefield in Southeast Alaska, USA, approximately 6.5 km northeast of the city of Juneau.
Lemon Creek Glacier is located at the southernmost tip of the Juneau Icefield in Southeast Alaska, USA, approximately 6.5 km northeast of the city of Juneau.
USGS scientist, Chris McNeil, collects data at an ablation stake on Wolverine Glacier near the end of the glacial melt season.
USGS scientist, Chris McNeil, collects data at an ablation stake on Wolverine Glacier near the end of the glacial melt season.
Tyndall Glacier in Taan Fiord, Alaska, is a modern day remnant of the glaciers that once flowed over the Gulf of Alaska.
Tyndall Glacier in Taan Fiord, Alaska, is a modern day remnant of the glaciers that once flowed over the Gulf of Alaska.
Example of thawing landscapes and thermokarst at our field sites
Example of thawing landscapes and thermokarst at our field sites
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
Underwater photo of a large school of Dolly Varden char and Arctic grayling in the Agashashok River. These fish were part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Underwater photo of a large school of Dolly Varden char and Arctic grayling in the Agashashok River. These fish were part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Gulkana Glacier is located along the south flank of the eastern Alaska Range.
Gulkana Glacier is located along the south flank of the eastern Alaska Range.
Heavily crevassed terminus of Gulkana Glacier, AK, near the end of the 2016 ablation (melt) season.
Heavily crevassed terminus of Gulkana Glacier, AK, near the end of the 2016 ablation (melt) season.
Aerial photo of Sperry Glacier, Digital Globe image taken 08/26/2016. Aerial imagery, like this photo of Sperry Glacier, is used to create digital elevation models (DEMs) used to extrapolate mass balance field measurements over the entire glacier.
Aerial photo of Sperry Glacier, Digital Globe image taken 08/26/2016. Aerial imagery, like this photo of Sperry Glacier, is used to create digital elevation models (DEMs) used to extrapolate mass balance field measurements over the entire glacier.
A Horned Puffin taking off from the water
A Horned Puffin taking off from the water