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Browse images from a wide range of science topics covered by USGS.
USGS scientists Erin Todd and Jonathan Caine wait for a helicopter pickup at a geologic mapping and sampling station high in the Neacola Mountains, Alaska.
USGS scientists Erin Todd and Jonathan Caine wait for a helicopter pickup at a geologic mapping and sampling station high in the Neacola Mountains, Alaska.
USGS researcher Jonathan Caine measures vein orientation at an outcrop of late Cretaceous pluton in Lake Clark National Park.
USGS researcher Jonathan Caine measures vein orientation at an outcrop of late Cretaceous pluton in Lake Clark National Park.
American Tree Sparrow in low to medium shrub thicket habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
American Tree Sparrow in low to medium shrub thicket habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Cross-cutting relationships of at least 4 different phases of rock and high-temperature silicate fluids in a sample from the Lake Clark area.
Cross-cutting relationships of at least 4 different phases of rock and high-temperature silicate fluids in a sample from the Lake Clark area.
A Red-throated Loon swimming in a small lake on the Colville River Delta.
A Red-throated Loon swimming in a small lake on the Colville River Delta.
Helicopter arriving to pick up geologists after retrieving geophysical equipment from the flanks of Redoubt Volcano, Alaska, July 2015
Helicopter arriving to pick up geologists after retrieving geophysical equipment from the flanks of Redoubt Volcano, Alaska, July 2015
Benthic invertebrates captured in a bottom trawl. This was from the Ecosystem Shifts in Arctic Seas project.
Benthic invertebrates captured in a bottom trawl. This was from the Ecosystem Shifts in Arctic Seas project.
The 2015 benthic field sampling team Jannelle Trowbridge, Vanessa von Biela, Carolynn Harris, and Thomas Nguyen. This was from the Ecosystem Shifts in Arctic Seas project.
The 2015 benthic field sampling team Jannelle Trowbridge, Vanessa von Biela, Carolynn Harris, and Thomas Nguyen. This was from the Ecosystem Shifts in Arctic Seas project.
ANSEP intern Jannelle Trowbridge sorts through a catch of benthic invertebrates for bivalves on the Norseman II. This was from the Ecosystem Shifts in Arctic Seas project.
ANSEP intern Jannelle Trowbridge sorts through a catch of benthic invertebrates for bivalves on the Norseman II. This was from the Ecosystem Shifts in Arctic Seas project.
Sea ice in the Chukchi Sea.
Sea ice in the Chukchi Sea.
Biologists sorting through buckets of benthic invertebrates looking for bivalves onboard the Norseman II in the Chukchi Sea.
Biologists sorting through buckets of benthic invertebrates looking for bivalves onboard the Norseman II in the Chukchi Sea.
Savannah Sparrow on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Savannah Sparrow on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Whimbrel in dwarf shrub meadow habitat on the Seward Peninsula, Alaska.
Whimbrel in dwarf shrub meadow habitat on the Seward Peninsula, Alaska.
Whimbrel feeding on a hummock of dwarf shrub meadow habitat.
Whimbrel feeding on a hummock of dwarf shrub meadow habitat.
Savannah Sparrow sitting on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Savannah Sparrow sitting on a hummock in dwarf shrub meadow habitat. This photo was taken on the Seward Peninsula as part of the Changing Arctic Ecosystem Boreal-Arctic Transition Zone program.
Fire ecologists record post-fire information on tree mortality, fuel consumption, and vegetation communities to better understand and predict fire impacts, Kenai National Wildlife Refuge, AK
Fire ecologists record post-fire information on tree mortality, fuel consumption, and vegetation communities to better understand and predict fire impacts, Kenai National Wildlife Refuge, AK
Dan Esler at work.
A Pacific Loon swimming in a small lake on the Colville River delta.
A Pacific Loon swimming in a small lake on the Colville River delta.
A Pacific Loon swimming in a small lake on the Colville River delta.
A Pacific Loon swimming in a small lake on the Colville River delta.
Greater White-fronted Goose on the Colville River Delta, northern Alaska.
Greater White-fronted Goose on the Colville River Delta, northern Alaska.
A smoke plume from a wildland fire rises above a spruce stand in the Kenai National Wildlife Refuge, AK
A smoke plume from a wildland fire rises above a spruce stand in the Kenai National Wildlife Refuge, AK