Rusting Rivers: Heavy Metals and Visible Color Changes
2025 Benchmark Glaciers Executive Summary
How did the USGS Benchmark Glaciers change in 2025?
How did the USGS Benchmark Glaciers change in 2025?
Geochemical Data Portal of the United States and Territories
Q&A: USGS Ecosystems Provides Objective Science to Manage Lands, Fish, and Wildlife
Alaska Critical Mineral Resource Assessments
Alaska has potential for a wide range of critical minerals including, but not limited to, graphite, lithium, tin, tungsten, rare earth elements, and platinum-group elements.
Alaska has potential for a wide range of critical minerals including, but not limited to, graphite, lithium, tin, tungsten, rare earth elements, and platinum-group elements.
Alaska Science Center
The mission of the Alaska Science Center is to provide objective and timely data, information, and research findings about the earth and its flora and fauna to Federal, State, and local resource managers and the public to support sound decisions regarding natural resources, natural hazards, and ecosystems in Alaska and circumpolar regions. We have offices in Anchorage, Juneau, and Fairbanks.
Critical Minerals in Ores (CMiO) Database
Critical Minerals in Ores (CMiO) Database
Critical minerals are commodities essential to modern industrial and strategic technologies and are highly vulnerable to supply chain disruption. The Critical Minerals in Ores (CMiO) database contains geochemical data for more than 20,000 samples from more than 100 deposit types comprising 10 deposit environments.
National Water Dashboard
National Water Dashboard
Explore real-time Alaska streamflow, groundwater, and water-quality conditions and access data with the USGS National Water Dashboard.
News
Alaska Science Center Newsletter - 2025 Yearly Review
Alaska Science Center Newsletter - 2025 Yearly Review
DOI scientists engage with Southeast Alaska Indigenous Guardians to discuss local sea otter ecology and economics
DOI scientists engage with Southeast Alaska Indigenous Guardians to discuss local sea otter ecology and economics
Ozette Lake: A natural seismograph along the northern Cascadia Subduction Zone (Video)
Ozette Lake: A natural seismograph along the northern Cascadia Subduction Zone (Video)
Publications
Migration water temperature and heat stress assessments in western Alaska Chinook salmon overlapping the 2019 heatwave Migration water temperature and heat stress assessments in western Alaska Chinook salmon overlapping the 2019 heatwave
Chinook salmon population declines span their geographic range with climate hypothesized as a major driver. Concerns of warming freshwater temperatures in their northern range gained urgency during 2019 when a heatwave coincided with premature mortality. This study examined heat stress during the 2019 heatwave compared to subsequent years and described water temperatures in western...
Harmonization of aggregated freshwater biotic data to support continental and global assessment Harmonization of aggregated freshwater biotic data to support continental and global assessment
Biodiversity loss and conservation are increasingly coming into focus in global policy fora, requiring information and assessments at wider spatial and temporal scales than previously considered. However, the monitoring framework required to support such data collection and assessment is lacking in many countries and is not harmonized across countries, hampering these efforts...
Tectonic implications of transitional melting regimes from petrological, geochronological, and compositional characterization of the ophiolitic Seventymile terrane, Alaska, USA Tectonic implications of transitional melting regimes from petrological, geochronological, and compositional characterization of the ophiolitic Seventymile terrane, Alaska, USA
New geochemical, U-Pb geochronology, and Sr-Nd-Hf isotope data provide evidence for the tectonic evolution of the Seventymile terrane in interior Alaska, USA. Ultramafic and mafic rocks of the Seventymile terrane are thought to represent components of a dismembered ophiolite and provide unique constraints on regional terrane evolution and accretion. The Seventymile ophiolite represents...
Science
Alaska Science Center Weekly Highlights
Recent findings from USGS Alaska Science Center staff and their collaborators.
Wolverine Glacier
Wolverine Glacier is located in the high-latitude maritime climate regime of Alaska’s Kenai Mountains. Glacier observations began at this site in 1966.
Lemon Creek Glacier
Lemon Creek Glacier is located in the high-latitude maritime region of Alaska, at the southernmost tip of the Juneau Icefield. Glacier observations began at this site in 1953.
