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Bryce Canyon is a unique sandstone formation in southern Utah. It is home to a large number of hoodoos, which are oddly shaped pillars of rock that formed due to different erosion rates for the dolomite that caps them and the sandstone that forms their base.
Bryce Canyon is also home to large numbers of cedar trees that spread throughout the canyon.
Bryce Canyon is a unique sandstone formation in southern Utah. It is home to a large number of hoodoos, which are oddly shaped pillars of rock that formed due to different erosion rates for the dolomite that caps them and the sandstone that forms their base.
Bryce Canyon is also home to large numbers of cedar trees that spread throughout the canyon.
Bryce Canyon's Wall of Windows.
Bryce Canyon is a unique sandstone formation in southern Utah. It is home to a large number of hoodoos, which are oddly shaped pillars of rock that formed due to different erosion rates for the dolomite that caps them and the sandstone that forms their base.
Bryce Canyon's Wall of Windows.
Bryce Canyon is a unique sandstone formation in southern Utah. It is home to a large number of hoodoos, which are oddly shaped pillars of rock that formed due to different erosion rates for the dolomite that caps them and the sandstone that forms their base.
A U.S. Geological Survey hydrologist collects a water sample from the Williamson River below Chiloquin, Oregon. The sample was analyzed as part of a water-quality study the USGS conducted in cooperation with the U.S. Bureau of Reclamation and the Klamath Tribes.
A U.S. Geological Survey hydrologist collects a water sample from the Williamson River below Chiloquin, Oregon. The sample was analyzed as part of a water-quality study the USGS conducted in cooperation with the U.S. Bureau of Reclamation and the Klamath Tribes.
Scanning Electron Microscope image of resuspended volcanic ash from the 1912 Novarupta-Katmai deposits in the Katmai region, picked up during high winds on November 1, 2015 and carried to Larsen Bay on Kodiak Island, AK. Sample collected by Sherry Harmes of Larsen Bay.
Scanning Electron Microscope image of resuspended volcanic ash from the 1912 Novarupta-Katmai deposits in the Katmai region, picked up during high winds on November 1, 2015 and carried to Larsen Bay on Kodiak Island, AK. Sample collected by Sherry Harmes of Larsen Bay.
For the first time since it was opened in 1984, water has stopped flowing through the Great Salt Lake causeway breach, an area that allows water to travel between the southern and northern parts of the lake.
For the first time since it was opened in 1984, water has stopped flowing through the Great Salt Lake causeway breach, an area that allows water to travel between the southern and northern parts of the lake.
A gage to measure lake water levels stands dry in the lake bed of the Great Salt Lake. For the first time since it was opened in 1984, water has stopped flowing through the Great Salt Lake causeway breach, an area that allows water to travel between the southern and northern parts of the lake.
A gage to measure lake water levels stands dry in the lake bed of the Great Salt Lake. For the first time since it was opened in 1984, water has stopped flowing through the Great Salt Lake causeway breach, an area that allows water to travel between the southern and northern parts of the lake.
During the 2nd International Planetary Caves Conference, attendees explored Lava River cave, located near Flagstaff, Arizona. This photo was taken using time-lapse photography and the light streak is the result of person walking with a headlamp.
During the 2nd International Planetary Caves Conference, attendees explored Lava River cave, located near Flagstaff, Arizona. This photo was taken using time-lapse photography and the light streak is the result of person walking with a headlamp.
During the 2nd International Planetary Caves Conference, attendees explored a 1.6-kilometer-long lava tube cave, northwest of Flagstaff, Arizona.
During the 2nd International Planetary Caves Conference, attendees explored a 1.6-kilometer-long lava tube cave, northwest of Flagstaff, Arizona.
Attendees of the 2nd International Planetary Caves Conference pose for a photo. Participants include a local high-school robotics team, called the CocoNuts.
Attendees of the 2nd International Planetary Caves Conference pose for a photo. Participants include a local high-school robotics team, called the CocoNuts.
After receiving permission from the homeowner, a U.S. Geological Survey hydrologist collects a water sample from a residential well in Emmett, Idaho. The sample was analyzed as part of a water-quality study the USGS conducted in cooperation with Gem County, Idaho and the Idaho Department of Environmental Quality.
After receiving permission from the homeowner, a U.S. Geological Survey hydrologist collects a water sample from a residential well in Emmett, Idaho. The sample was analyzed as part of a water-quality study the USGS conducted in cooperation with Gem County, Idaho and the Idaho Department of Environmental Quality.
This sensor, called a bird, is tethered to a helicopter during USGS geophysical surveys. As the helicopter flies low over specific areas, the bird transmits electromagnetic waves deep into the ground to measure the below-surface physical properties. This scientific system is called Resolve and is operated by CGG Canada Servives, Ltd.
This sensor, called a bird, is tethered to a helicopter during USGS geophysical surveys. As the helicopter flies low over specific areas, the bird transmits electromagnetic waves deep into the ground to measure the below-surface physical properties. This scientific system is called Resolve and is operated by CGG Canada Servives, Ltd.
USGS scientist Matt Jennings inspects streamgage number 02136361 at Turkey Creek near Maryville, South Carolina, the morning of October 4, 2015. The discharge they measured was 6,000 cfs.
USGS scientist Matt Jennings inspects streamgage number 02136361 at Turkey Creek near Maryville, South Carolina, the morning of October 4, 2015. The discharge they measured was 6,000 cfs.
Drought-related tree mortality at a low elevation forest in Sequoia National Park.
Drought-related tree mortality at a low elevation forest in Sequoia National Park.
In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd.
In this image, a helicopter towing a large, cylindrical sensor makes low-level flights as part of a USGS remote geophysical survey, which collects data about underground geology. The scientific system, called Resolve, is operated by CGG Canada Services, Ltd.
Aerial view showing the intense greenup of restoration plots in the lower Colorado River Delta following the 2014 Minute 319 pulse flow.
Aerial view showing the intense greenup of restoration plots in the lower Colorado River Delta following the 2014 Minute 319 pulse flow.
This is an animated GIF, taken from a longer video, showing the moment that this geologist from the Hawaiian Volcano Observatory (HVO) scoops up lava from an active flow and drops it into a bucket of water to cool it down.
This is an animated GIF, taken from a longer video, showing the moment that this geologist from the Hawaiian Volcano Observatory (HVO) scoops up lava from an active flow and drops it into a bucket of water to cool it down.
USGS hydrologist Mark Reid looks at one of the many grabens (extensional basins) that formed as the Oso landslide swept across the North Fork Stillaguamish River valley.
USGS hydrologist Mark Reid looks at one of the many grabens (extensional basins) that formed as the Oso landslide swept across the North Fork Stillaguamish River valley.
Family group (adult female and cub-of-the-year) photographed in September of 2015 departing the bowhead whale bone pile near the community of Kaktovik, AK.
Family group (adult female and cub-of-the-year) photographed in September of 2015 departing the bowhead whale bone pile near the community of Kaktovik, AK.
Low stream flows at USGS Wabuska stream gage (10301500) on the Walker River in Nevada, near the end of the 2011-2016 drought. Link to streamgage data.
Low stream flows at USGS Wabuska stream gage (10301500) on the Walker River in Nevada, near the end of the 2011-2016 drought. Link to streamgage data.
Hoover Dam looking upstream on the Colorado River.
Hoover Dam looking upstream on the Colorado River.
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.
USGS scientists drilling a research core near Waco, Texas. This core was drilled by USGS during field work for an oil and gas assessment for the Eagle Ford of the Gulf Coast Basins. Cores like these provide information on the various rock layers, such as their make-up, their age, etc.