Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
There is a short window of opportunity to complete glacier repeat photography. Scientists must wait until late summer, when seasonal snow has melted from the glacier surface and glacier margins can be identified. This is also the time of year when weather and forest fire smoke can hamper photography and hiking.
There is a short window of opportunity to complete glacier repeat photography. Scientists must wait until late summer, when seasonal snow has melted from the glacier surface and glacier margins can be identified. This is also the time of year when weather and forest fire smoke can hamper photography and hiking.
The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. This sunset image was taken from Steamboat Lake, Wind River Indian Reservation, Wind River Range, Wyoming.
The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. This sunset image was taken from Steamboat Lake, Wind River Indian Reservation, Wind River Range, Wyoming.
The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. This image shows a research raft on Spider Lake, Wind River Indian Reservation, Wind River Range, Wyoming.
The USGS and partners study the effects of climate change on the Greater Yellowstone Ecosystem. This image shows a research raft on Spider Lake, Wind River Indian Reservation, Wind River Range, Wyoming.
Shallow creek with conifer trees on each side running through Gallatin National Forest, Montana.
Shallow creek with conifer trees on each side running through Gallatin National Forest, Montana.
Kintla Glacier 2019
Torrent salamanders are Northwest-U.S. endemic, headwater-stream-associated amphibian species that have a dearth of basic ecological information, but are thought to be highly vulnerable to habitat changes.
Torrent salamanders are Northwest-U.S. endemic, headwater-stream-associated amphibian species that have a dearth of basic ecological information, but are thought to be highly vulnerable to habitat changes.
MBARI Environmental Sample Processor (ESP) installed in Streamgage
MBARI Environmental Sample Processor (ESP) installed in Streamgage
Installing MBARI Environmental Sample Processor (ESP) Streamgage
Installing MBARI Environmental Sample Processor (ESP) Streamgage
Sealing MBARI Environmental Sample Processor into its housing
Sealing MBARI Environmental Sample Processor into its housing
Snake River near Irwin, ID staff plate (station 13032500)
Snake River near Irwin, ID staff plate (station 13032500)
Moving ESP into gagehouse
Installing sampling pump in river
A uninhabited aerial system (UAS), a drone, flies above avalanche terrain to collect imagery used for avalanche studies.
A uninhabited aerial system (UAS), a drone, flies above avalanche terrain to collect imagery used for avalanche studies.
Firn core with an ice lens collected on Gulkana Glacier during spring 2019 mass balance field work. Gulkana Glacier is located along the south flank of the eastern Alaska Range.
Firn core with an ice lens collected on Gulkana Glacier during spring 2019 mass balance field work. Gulkana Glacier is located along the south flank of the eastern Alaska Range.
Weather station instruments are all but buried near the spring snow maximum at Sperry Glacier in Glacier National Park, Montana.
Weather station instruments are all but buried near the spring snow maximum at Sperry Glacier in Glacier National Park, Montana.
An autonomous sampler (white box) is visible alongside a stream site in Montana
An autonomous sampler (white box) is visible alongside a stream site in Montana
Elk on National Elk Refuge, Wyoming.
Image taken by a research drone of elk from the Jackson elk herd after then have received supplement feed by the National Elk Refuge. Notice how aggregated the elk are due to the feeding.
Image taken by a research drone of elk from the Jackson elk herd after then have received supplement feed by the National Elk Refuge. Notice how aggregated the elk are due to the feeding.
Who's who? These are print casts of front and back paw prints of a grizzly bear (top) and black bear (bottom). The casts on the right are the front paws of each species; the casts on the left are the back. How do you tell?
Who's who? These are print casts of front and back paw prints of a grizzly bear (top) and black bear (bottom). The casts on the right are the front paws of each species; the casts on the left are the back. How do you tell?
Grand Teton National Park in autumn.
Image of scientist setting up a radar system in Colorado to test its efficacy in detecting birds and bats flying towards spinning wind turbines.
Image of scientist setting up a radar system in Colorado to test its efficacy in detecting birds and bats flying towards spinning wind turbines.