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Browse images from a wide range of science topics covered by USGS.
Lower Drift River with tremendous amount of silt from the lahars. Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Lower Drift River with tremendous amount of silt from the lahars. Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Drift River on the west side of Cook Inlet, Alaska. Lahars from the eruption of Redoubt are evident. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams. Alaska Department of Fish and Game had done surveys in this particular area and found coho salmon before the eruption.
Drift River on the west side of Cook Inlet, Alaska. Lahars from the eruption of Redoubt are evident. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams. Alaska Department of Fish and Game had done surveys in this particular area and found coho salmon before the eruption.
A panorama of the Redoubt Volcano after the 2009 eruption and the Drift River delta in the foreground
A panorama of the Redoubt Volcano after the 2009 eruption and the Drift River delta in the foreground
View of the amount of lahar deposit from across the river and the amount of deposit the river has eroded out to sea in about 6 months. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
View of the amount of lahar deposit from across the river and the amount of deposit the river has eroded out to sea in about 6 months. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of Tuxedni Bay on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of streams on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of streams on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of streams on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Aerial views of streams on the west side of Cook Inlet, Alaska. This was during surveys for juvenile salmon distribution for the Anadromous Fish Catalog for the State of Alaska.
Upper Crescent River on the west side of Cook Inlet, Alaska. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Upper Crescent River on the west side of Cook Inlet, Alaska. Surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Retreating glacier viewed southward from Polychrome Mountain in Denali National Park, Alaska, on July 29, 2009.
Retreating glacier viewed southward from Polychrome Mountain in Denali National Park, Alaska, on July 29, 2009.
Ed Pfeifer of the USGS Southwest Geographic Science Team recording field notes in alpine tundra during a field study of Dall sheep habitat in Denali National Park, Alaska, on July 29, 2009.
Ed Pfeifer of the USGS Southwest Geographic Science Team recording field notes in alpine tundra during a field study of Dall sheep habitat in Denali National Park, Alaska, on July 29, 2009.
Ed Pfeifer of the USGS Southwest Geographic Science Team surveying alpine vegetation during a field study of Dall sheep habitat in Denali National Park, Alaska, on July 28, 2009.
Ed Pfeifer of the USGS Southwest Geographic Science Team surveying alpine vegetation during a field study of Dall sheep habitat in Denali National Park, Alaska, on July 28, 2009.
Barry Middleton (left) and Ed Pfeifer (right) of the USGS Southwest Geographic Science Team engaged in field observations of Dall sheep in Denali National Park, Alaska, on July 27, 2009.
Barry Middleton (left) and Ed Pfeifer (right) of the USGS Southwest Geographic Science Team engaged in field observations of Dall sheep in Denali National Park, Alaska, on July 27, 2009.
Drift River on the west side of Cook Inlet, Alaska. Lahars from the eruption of Redoubt are evident. Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Drift River on the west side of Cook Inlet, Alaska. Lahars from the eruption of Redoubt are evident. Aerial surveys were done after the eruption of the Redoubt volcano to determine the condition of fish streams.
Black-footed Albatross flying near Kasatochi Volcano in 2009
Black-footed Albatross flying near Kasatochi Volcano in 2009
This photograph shows birds taking flight near Icy Cape on the Chukchi Sea coast of Alaska, an area that provides habitat for a variety of avian species.
This photograph shows birds taking flight near Icy Cape on the Chukchi Sea coast of Alaska, an area that provides habitat for a variety of avian species.
This photograph shows two grizzly bears frolic on the tundra near the Avak River on the Chukchi Sea coast of Alaska. Coastal erosion along the Arctic coast is chronic, widespread and potentially accelerating, posing threats to infrastructure important for defense and energy purposes, natural shoreline habitats and nearby Native communities.
This photograph shows two grizzly bears frolic on the tundra near the Avak River on the Chukchi Sea coast of Alaska. Coastal erosion along the Arctic coast is chronic, widespread and potentially accelerating, posing threats to infrastructure important for defense and energy purposes, natural shoreline habitats and nearby Native communities.
This photograph shows snow and ice melt along the rolling hills and coastal bluffs near Cape Sabine on the western Chukchi Sea coast of Alaska.
This photograph shows snow and ice melt along the rolling hills and coastal bluffs near Cape Sabine on the western Chukchi Sea coast of Alaska.
This photograph shows three caribou escape the mosquitos on the mudflats of Kasegaluk Lagoon on the Chukchi Sea coast of Alaska. Coastal erosion along the Arctic coast is chronic, widespread and potentially accelerating, posing threats to infrastructure important for defense and energy purposes, natural shoreline habitats and nearby Native communities.
This photograph shows three caribou escape the mosquitos on the mudflats of Kasegaluk Lagoon on the Chukchi Sea coast of Alaska. Coastal erosion along the Arctic coast is chronic, widespread and potentially accelerating, posing threats to infrastructure important for defense and energy purposes, natural shoreline habitats and nearby Native communities.