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Browse images from a wide range of science topics covered by USGS.

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A large flock of Bar-tailed Godwits flying near Egegik, Alaska
Bar-tailed Godwits in flight near Egegik, Alaska
Bar-tailed Godwits in flight near Egegik, Alaska
Bar-tailed Godwits in flight near Egegik, Alaska

A large flock of Bar-tailed Godwits flying near Egegik, Alaska

Sockeye salmon spawning in Grand Central River on the Seward Peninsula, Alaska
Sockeye salmon spawning in the Grand Central River, Alaska
Sockeye salmon spawning in the Grand Central River, Alaska
Sockeye salmon spawning in the Grand Central River, Alaska

Sockeye salmon spawning in the Grand Central River, on the Seward Peninsula near Salmon Lake, Alaska.

Sockeye salmon in shallow waters of Salmon Lake
Sockeye salmon in shallow waters of Salmon Lake
Sockeye salmon in shallow waters of Salmon Lake
Sockeye salmon in shallow waters of Salmon Lake

Sockeye salmon in shallow waters of Salmon Lake which is at the headwaters of the Pilgrim River.

A weir on the Snake River to count chum and coho salmon, near Nome, Alaska
Fish weir on the Snake River, near Nome, Alaska
Fish weir on the Snake River, near Nome, Alaska
Fish weir on the Snake River, near Nome, Alaska

A weir on the Snake River, near Nome, Alaska.  This weir was used to count chum and coho salmon adults.

Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska

Scenic view of the Fish River on Seward Peninsula, Alaska.

Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska
Fish River on the Seward Peninsula, Alaska

Scenic view of the Fish River on Seward Peninsula, Alaska.

The Nome River with a grassy island
The Nome River, Alaska
The Nome River, Alaska
The Nome River, Alaska

Scenic view of the Nome River

The Nome River with clouds
The Nome River, Alaska
The Nome River, Alaska
The Nome River, Alaska

Scenic view of the Nome River

Image: Alaskan Glacier
Alaskan Glacier
Alaskan Glacier
Sheridan River sonar
Sheridan River sonar
Sheridan River sonar
Sheridan River scour hole
Sheridan River scour hole
Sheridan River scour hole
Muir and Riggs glaciers flowing into a lake in Alaska
Muir and Riggs Glaciers, Muir Inlet, Alaska
Muir and Riggs Glaciers, Muir Inlet, Alaska
Muir and Riggs Glaciers, Muir Inlet, Alaska

Glaciers

As this picture of Muir and Riggs Glaceris in Alaska shows, glaciers are really rivers, but rivers of solid ice instead of liquid water. Just because they are solid does not mean they don't move, though. Glaciers do flow downhill, just very, very slowly.

Glaciers

As this picture of Muir and Riggs Glaceris in Alaska shows, glaciers are really rivers, but rivers of solid ice instead of liquid water. Just because they are solid does not mean they don't move, though. Glaciers do flow downhill, just very, very slowly.

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