Images

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

Common Mergansers are sometimes called sawbills, fish ducks, or goosanders. The word “merganser” comes from the Latin and translates to “plunging goose”. Similar to Goldeneye ducks, mergansers usually nest in natural tree cavities.

The male Common Goldeneye performs a complex courtship display during winter and early spring. These diving ducks eat mostly aquatic invertebrates and fish and females nest in tree cavities.

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.

A mated pair of Common Eider swim across a lake in northern Alaska.

Photography by Jeff Wasley.

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

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

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

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

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.

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

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.

Flooding encroaches on trees, Exit Creek.