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GPS station P714, located in Panther Meadow south of Mammoth Hot Springs in Yellowstone National Park. Photo by EarthScope Consortium, June 2008.
GPS station P714, located in Panther Meadow south of Mammoth Hot Springs in Yellowstone National Park. Photo by EarthScope Consortium, June 2008.
Supplemental feeding of bison on the National Elk Refuge, Wyoming in February 2008.
Supplemental feeding of bison on the National Elk Refuge, Wyoming in February 2008.
Supplemental feeding of bison on the National Elk Refuge, Wyoming in February 2008.
Supplemental feeding of bison on the National Elk Refuge, Wyoming in February 2008.
Elk and bison being fed on the National Elk Refuge, Wyoming. Grand Teton and Grand Teton National Park are in the background.
Elk and bison being fed on the National Elk Refuge, Wyoming. Grand Teton and Grand Teton National Park are in the background.
Fish Creek, Wyoming
Aerial view of the National Elk Refuge (left) and the town of Jackson, Wyoming (right) in 2007.
Aerial view of the National Elk Refuge (left) and the town of Jackson, Wyoming (right) in 2007.
An eruption of Daisy Geyser in the Upper Geyser Basin of Yellowstone National Park. The geyser erupts boiling water at about 93 °C (200 °F). Photo by Shaul Hurwitz on April 12, 2007.
An eruption of Daisy Geyser in the Upper Geyser Basin of Yellowstone National Park. The geyser erupts boiling water at about 93 °C (200 °F). Photo by Shaul Hurwitz on April 12, 2007.
National Agriculture Imagery Program natural-color image from September 9, 2006, showing newly mapped thermal areas (outlined in yellow) on the north side of the Mallard Lake resurgent dome.
National Agriculture Imagery Program natural-color image from September 9, 2006, showing newly mapped thermal areas (outlined in yellow) on the north side of the Mallard Lake resurgent dome.
Upper Lebo Member of the Fort Union Formation. Photo taken fro the top of Cow Creek Buttes in the Burnt Hollow BLM recreation area about 20 miles northeast of Gillette, Wyoming.
Upper Lebo Member of the Fort Union Formation. Photo taken fro the top of Cow Creek Buttes in the Burnt Hollow BLM recreation area about 20 miles northeast of Gillette, Wyoming.
Single species stand of nonnative tamarisk on the Lower Colorado River at Cibola National Wildlife Refuge, California
Single species stand of nonnative tamarisk on the Lower Colorado River at Cibola National Wildlife Refuge, California
Old Faithful Geyser in eruption. Under Yellowstone Research Permit YELL-SCI-8030, 13 mineralized wood specimens were collected from the geyser mound. The dates of the mineralized wood samples imply that such eruptions did not take place for over a century between the mid-13th to mid-14th centuries.
Old Faithful Geyser in eruption. Under Yellowstone Research Permit YELL-SCI-8030, 13 mineralized wood specimens were collected from the geyser mound. The dates of the mineralized wood samples imply that such eruptions did not take place for over a century between the mid-13th to mid-14th centuries.
Aerial (balloon) view of Norris Geyser Basin, Yellowstone National Park, looking northwest from the south. USGS Photo by Brita Graham Wall, 2005.
Aerial (balloon) view of Norris Geyser Basin, Yellowstone National Park, looking northwest from the south. USGS Photo by Brita Graham Wall, 2005.
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park. Grand Prismatic is the largest hot spring in Yellowstone and the third largest in the world. Photograph by Robert Fournier.
Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park. Grand Prismatic is the largest hot spring in Yellowstone and the third largest in the world. Photograph by Robert Fournier.
A comparison of black cinders from Cinder Pool, in Norris Geyser Basin (left), with yellow cinders from an unnamed pool in the West Nymph Creek thermal area (right). The Cinder Pool cinders are black due to finely dispersed pyrite, whereas the yellow color of cinders from the West Nymph Creek pool is due to the lack of pyrite.
A comparison of black cinders from Cinder Pool, in Norris Geyser Basin (left), with yellow cinders from an unnamed pool in the West Nymph Creek thermal area (right). The Cinder Pool cinders are black due to finely dispersed pyrite, whereas the yellow color of cinders from the West Nymph Creek pool is due to the lack of pyrite.
Map showing earthquake focal mechanisms in the Yellowstone region.
Map showing earthquake focal mechanisms in the Yellowstone region.
Describing work that USGS does to students at the Women In Science Conference
Describing work that USGS does to students at the Women In Science Conference
A photo of a grassland area of eastern Wyoming taken for the Land Cover Trends project by Terry Sohl of the USGS.
A photo of a grassland area of eastern Wyoming taken for the Land Cover Trends project by Terry Sohl of the USGS.
Slow cooling of a basaltic lava flow that was erupted about 500,000 years ago resulted in the formation of hexagonal columns at Sheepeater Cliff, in Yellowstone National Park.
Slow cooling of a basaltic lava flow that was erupted about 500,000 years ago resulted in the formation of hexagonal columns at Sheepeater Cliff, in Yellowstone National Park.
A 1.5-million-year-old basaltic lava flow in the canyon wall of the Yellowstone River as viewed from Calcite Springs Overlook near Tower Junction in Yellowstone National Park. Slow cooling of this lava flow resulted in the formation of vertical columns. Glacial gravels are present above and below the lava flow.
A 1.5-million-year-old basaltic lava flow in the canyon wall of the Yellowstone River as viewed from Calcite Springs Overlook near Tower Junction in Yellowstone National Park. Slow cooling of this lava flow resulted in the formation of vertical columns. Glacial gravels are present above and below the lava flow.