U.S. Geological Survey:
Akutan Hot Springs
U.S. Geological Survey:
Mapping the Nation's Wind Turbines
U.S. Geological Survey:
Sunset Turbines
U.S. Geological Survey:
Nanushuk Formation, Tuktu Bluff
U.S. Geological Survey:
Geothermal Energy Sources
U.S. Geological Survey:
Gas Hydrates
U.S. Geological Survey:
Saugus Iron Works Forge and Mill
U.S. Geological Survey:
Natural Gas Flare
U.S. Geological Survey:
Alaskan Pipeline