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Browse images from a wide range of science topics covered by USGS.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Ric Wilson, a doctorate in geology and USGS research geologist at the Alaska Science Center in Anchorage, Alaska.
Ric Wilson, a doctorate in geology and USGS research geologist at the Alaska Science Center in Anchorage, Alaska.
Map of area where the USGS and USFWS may observe Pacific walrus during marine expeditions on the RV Norseman II starting in summer of 2024. Crosshatching in the map shows the general area where the Norseman II may sail to observe walruses in the summer of 2024, as part of a USGS and USFWS project to study Pacific walrus population dynamics.
Map of area where the USGS and USFWS may observe Pacific walrus during marine expeditions on the RV Norseman II starting in summer of 2024. Crosshatching in the map shows the general area where the Norseman II may sail to observe walruses in the summer of 2024, as part of a USGS and USFWS project to study Pacific walrus population dynamics.
A USGS hat sits on a bed of black bear berry vegetation. This photo was taken in Kanuti, Alaska.
A USGS hat sits on a bed of black bear berry vegetation. This photo was taken in Kanuti, Alaska.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
RV Norseman II ship track for the Pacific walrus research expedition in 2023. In collaboration with the U.S. Fish and Wildlife Service, the USGS conducted a research expedition to study Pacific walrus population dynamics. The ship departed Nome, AK on June 5, 2023, and returned to Nome on July 2, 2023.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
USGS Staff at the Unuk River Streamgage in Southeast Alaska. The Unuk River is the second smallest watershed in the transboundary study of Southeast Alaska, but has three large mining projects in development (Kerr-Sulplherets-Mitchell (KSM), Brucejack, and Eskay Creek)
USGS Staff at the Unuk River Streamgage in Southeast Alaska. The Unuk River is the second smallest watershed in the transboundary study of Southeast Alaska, but has three large mining projects in development (Kerr-Sulplherets-Mitchell (KSM), Brucejack, and Eskay Creek)
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
An adult female Pacific walrus slides into the water as she assesses her surroundings. The female is 15 years or older based on the length of the tusks. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Alarge, active, and noisy walrus group hauled on sea ice in the Chukchi Sea. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
Walrus groups hauled on sea ice as far as the eye can see in the Chukchi Sea. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
An adult female walrus with a one-year old offspring. USGS and the U.S.
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
A dim light shines during the summer Arctic morning in the Chukchi Sea as groups of Pacific walruses rest. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
A rainbow emerges from an evening shower in the Chukchi Sea. USGS and the U.S.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Orange streams are increasingly common in the Brooks Range of northern Alaska. The orange stream color reflects oxidized iron, but also often indicates elevated heavy metal concentrations. Our ongoing study aims to document these occurrences and the timing of their onset.
Map showing the premature mortality observations of Pacific salmon carcasses in Alaska during summer and fall of 2019. Symbol color and shape denote Pacific Salmon species or alternative taxonomic groupings specified in the legend.
Map showing the premature mortality observations of Pacific salmon carcasses in Alaska during summer and fall of 2019. Symbol color and shape denote Pacific Salmon species or alternative taxonomic groupings specified in the legend.
A polar bear walking along the Beaufort Sea coast with storm waves breaking behind it, filmed during fieldwork at Barter Island, Alaska.
A polar bear walking along the Beaufort Sea coast with storm waves breaking behind it, filmed during fieldwork at Barter Island, Alaska.
THE ALEUTIAN CRADLE OF TSUNAMIS
(Click here to read EOS Feature: Seismic Sources in the Aleutian Cradle of Tsunamis)