Images

Zan Frederick (USGS) installing a camera on the Mt. Foraker weather station, located on the southeast ridge at 7,826'. Mt. McKinley (20,320 ft) and Mt. Hunter (14,573 ft) are in the background. This site is a collaboration between USGS, Denali National Park, and the National Park Service Inventory and Monitoring program.

Zan Frederick (USGS) installing a camera on the Mt. Foraker weather station, located on the southeast ridge at 7,826'. This site is a collaboration between USGS, Denali National Park, and the National Park Service Inventory and Monitoring program. The camera transmits low-latency images once daily in winter and hourly during the busy summer season.

Bar plot showing the percentage of Chinook salmon with evidence of heat stress in each group based on the heat shock protein 70 (HSP70) protein concentration data. Map indicates sample collection locations. Sample groups are arranged by region from north to south: Norton Sound (purple), Yukon (orange), and Kuskokwim (green).

A shelf full of legacy data collected on seabirds in Cook Inlet and Glacier Bay, Alaska.

Alaska Science Center Data Management staff organize, scan, and digitally archive physical data. Once published as part of a data release, the physical data are organized and placed into banker boxes, labeled with pertinent information, such as the data release DOI, and moved to a secure location.

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.

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 locations of placer mines in the Alaska Resource Data File (ARDF, red crosses), primary mineral districts that contain targeted critical minerals (black boxes) and locations that were sampled by the USGS in 2022 through 2024 (yellow stars).

USGS scientists measure flooding on the Mendenhall River as water releases from Suicide Basin’s glacier-dammed lake on August 13, 2025. 

The sun sets over Katmai National Park and Preserve. Katmai is one of four monitoring sites for the Nearshore Component of the Gulf Watch Alaska program.

Ridged hull inflatable skiffs are used by scientists to conduct rocky intertidal monitoring for the Nearshore Component of the Gulf Watch Alaska program. Data are collected to estimate percent cover and densities of intertidal invertebrates and algae to assess change in communities from sheltered rocky shorelines.

A scientist holds a HOBO temperature logger that was recently retrieved from a sampling site at Katmai National Park and Preserve. The sensor end of the HOBO was partially covered by a small sea star (Leptasterias spp.) when recovered from the site. The temperature loggers record the water temperature.

A native bubble bee pollinates a wild celery. There are 22 species of bumblebees in Alaska and all are essential pollinators during the short growing season.

A pair of scientists observe sea otter foraging behavior at Katmai National Park and Preserve. Questar telescopes are used to assist with prey identification.