Images

The open black spruce forest of the West Twin Creek catchment with Table Top Mountain in the background

Carson Baughman conducting lake surveys in the Kenai National Wildlife Refuge in 2014.

Nenana River pier near Windy

Aerial image of Taku Glacier in 1948. The Norris Glacier can be seen on the lower left hand corner and the Hole-in-the-Wall Glacier in the upper center portion of the image. Citation: McNeil, C. J., and Baker, E. H., 2019, Geodetic data for Juneau Icefield Glaciers: orthophotos, digital elevation models, and glacier boundaries (ver 1.0, August, 2019): U.S.

Large polar bear being weighed by Anthony Pagano and Todd Atwood

Controlled experiments that simulate fire environments provide critical information for understanding how fire intensity and duration impact archaeological resources

U.S. Geological Survey offices in Glenn Olds Hall on the Alaska Pacific University. Photo taken from across University Lake.

The old Kennecott copper mill in the winter.  Kennecott was once a thriving mine and mill during the early 1900s. The mines are 5 miles up the mountain.

Sampling for invasive northern pike in south central Alaska.

Cackling goose (Branta hutchinsii) on the Colville River Delta. Photo by Ryan Askren, USGS.

Common Eider pair in the water

Stark comparison between bog (no permafrost) in the foreground and a boreal forest (with permafrost) in the background in the Alaskan interior.

Walrus bellowing while on shore in 2013 in the Eastern Chukchi Sea.

Walruses are very social animals and like to be in constant contact with other walruses. Photo taken during USGS research efforts permitted under US Fish and Wildlife Service Permit No. MA801652-3

Walruses gathered by the tens of thousands in September 2013 to rest on the shores of the Chukchi Sea near the coastal village of Point Lay, Alaska.

Walruses gathered by the tens of thousands in September 2013 to rest on the shores of the Chukchi Sea near the coastal village of Point Lay, Alaska.

Walruses gathered by the tens of thousands in September 2013 to rest on the shores of the Chukchi Sea near the coastal village of Point Lay, Alaska.

Faulted and folded Triassic, Jurassic, and Cretaceous rocks along Surprise Creek in southern part of Western North Slope. The Triassic and Jurassic rocks include petroleum source rocks from which oil was generated. Geologists in orange vests for scale.

Geologist describes petroleum source rocks in Triassic and Jurassic rocks along Surprise Creek in southern part of Western North Slope.

Geologists measuring petroleum source rocks in Triassic rocks along Surprise Creek in southern part of Western North Slope.

Exit Creek flooding across the road