A view of American Falls from the United States side of Niagara Falls.
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American Falls
A view of American Falls from the United States side of Niagara Falls.
American Falls
A view of American Falls from the United States side of Niagara Falls.
A view of American Falls from the United States side of Niagara Falls.
American Falls
A view of American Falls from the Canadian side of Niagara Falls.
A view of American Falls from the Canadian side of Niagara Falls.
Chukchi Sea sea ice
Sea ice in the Chukchi Sea.
Sea ice in the Chukchi Sea.
CERC Scientists Operate a Sediment Sampler on the Yellowstone River
CERC Scientists Operate a Sediment Sampler on the Yellowstone RiverA USGS scientist operates a Petite Ponar substrate sampler to sample bed material in an area identified as a pallid sturgeon spawning location on the Yellowstone River, North Dakota.
CERC Scientists Operate a Sediment Sampler on the Yellowstone River
CERC Scientists Operate a Sediment Sampler on the Yellowstone RiverA USGS scientist operates a Petite Ponar substrate sampler to sample bed material in an area identified as a pallid sturgeon spawning location on the Yellowstone River, North Dakota.
Close-up Sample
A close-up image of lignite-dominated gravel sampled from a spawning area with Petite Ponar sampler.
A close-up image of lignite-dominated gravel sampled from a spawning area with Petite Ponar sampler.
Petite Ponar Sampler and Sample
Collecting and storing substrate samples using a Petite Ponar sampler (top right) for later analysis.
Collecting and storing substrate samples using a Petite Ponar sampler (top right) for later analysis.
A USGS researcher takes algae samples at Bear Creek in Redmond, WA.
A USGS researcher takes algae samples at Bear Creek in Redmond, WA.A USGS researcher takes algae samples at Bear Creek in Redmond, Washington.
A USGS researcher takes algae samples at Bear Creek in Redmond, WA.
A USGS researcher takes algae samples at Bear Creek in Redmond, WA.A USGS researcher takes algae samples at Bear Creek in Redmond, Washington.
Multibeam on the Yellowstone River
USGS research vessel outfitted with a compact multibeam sonar echosounder system with an inertial motion unit and real time kinematic positioning global positioning system (RTK GPS) surveys the Yellowstone River near Fairview, North Dakota.
USGS research vessel outfitted with a compact multibeam sonar echosounder system with an inertial motion unit and real time kinematic positioning global positioning system (RTK GPS) surveys the Yellowstone River near Fairview, North Dakota.
John Redmond Reservoir
John Redmond Reservoir Outlet, June 22, 2015. Ten thousand cubic feet per second being released.
John Redmond Reservoir Outlet, June 22, 2015. Ten thousand cubic feet per second being released.
Pallid Sturgeon Free Embryo
Newly hatched pallid sturgeon free embryo. On average, pallid sturgeon hatch between 7 to 9 millimeters (about 0.25 to 0.35 inch).
Newly hatched pallid sturgeon free embryo. On average, pallid sturgeon hatch between 7 to 9 millimeters (about 0.25 to 0.35 inch).
Pallid Sturgeon Embryos
Well-developed pallid sturgeon embryos can be seen approximately four days after fertilization.
Well-developed pallid sturgeon embryos can be seen approximately four days after fertilization.
Pallid Sturgeon Embryos
The neural plate or primitive streak of developing pallid sturgeon embryos can be seen 2 days after fertilization.
The neural plate or primitive streak of developing pallid sturgeon embryos can be seen 2 days after fertilization.
Fertilized Pallid Sturgeon Eggs
Pallid sturgeon embryos approximately 8 hours after fertilization.
Pallid sturgeon embryos approximately 8 hours after fertilization.
Dr. Matthew C. Hansen
Image of Dr. Matthew C. Hansen who is a recipient of a William T. Pecora Award for achievements in Earth remote sensing.
Image of Dr. Matthew C. Hansen who is a recipient of a William T. Pecora Award for achievements in Earth remote sensing.
The Human Side of Things
Angler catches a fish during a Panfish Fishing Tournament on June 6, 2015 on Brownlee Reservoir in Oregon. Fish serve as an important recreational, commercial, and cultural resource in the United States and Canada. Credit: Baker County Tourism
Angler catches a fish during a Panfish Fishing Tournament on June 6, 2015 on Brownlee Reservoir in Oregon. Fish serve as an important recreational, commercial, and cultural resource in the United States and Canada. Credit: Baker County Tourism
San Pedro Riparian National Conservation Area
Photograph showing San Pedro Riparian National Conservation Area, residential development southeast of Sierra Vista, Arizona, and the Huachuca Mountains from Hereford Road, Cochise County, Arizona.
Photograph showing San Pedro Riparian National Conservation Area, residential development southeast of Sierra Vista, Arizona, and the Huachuca Mountains from Hereford Road, Cochise County, Arizona.
Rock Slide in Nepal from an Earthquake in April of 2015
Rock Slide in Nepal from an Earthquake in April of 2015Villagers in Kerauja below a rock slide that resulted from a magnitude 7.8 earthquake on April 25, 2015 in Gorkha district, Nepal.
Rock Slide in Nepal from an Earthquake in April of 2015
Rock Slide in Nepal from an Earthquake in April of 2015Villagers in Kerauja below a rock slide that resulted from a magnitude 7.8 earthquake on April 25, 2015 in Gorkha district, Nepal.
Low-Level Flights in Southeast Missouri Will Look at Geology and Mineral Resources
Low-Level Flights in Southeast Missouri Will Look at Geology and Mineral ResourcesA Piper Navajo airplane with auxiliary wingtip pods and tail stinger magnetometers will study the rocks within the St. Francois Mountains in southeast Missouri.
Low-Level Flights in Southeast Missouri Will Look at Geology and Mineral Resources
Low-Level Flights in Southeast Missouri Will Look at Geology and Mineral ResourcesA Piper Navajo airplane with auxiliary wingtip pods and tail stinger magnetometers will study the rocks within the St. Francois Mountains in southeast Missouri.
Memorial Day Flood in Texas
Road and bridge damage on the Blanco River near Blanco, Texas, from the Memorial Day 2015 Flood.
Road and bridge damage on the Blanco River near Blanco, Texas, from the Memorial Day 2015 Flood.
Biologists Collecting Biological Samples from Grizzly Bear
Biologists Collecting Biological Samples from Grizzly BearUSGS biologists collecting biological information from a grizzly bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.
Biologists Collecting Biological Samples from Grizzly Bear
Biologists Collecting Biological Samples from Grizzly BearUSGS biologists collecting biological information from a grizzly bear they have captured. Biologists collect hair samples for genetic analysis, weigh the bear, and gather numerous measurements of the body, such as the head, paws, claws, teeth, etc. Overall condition of the bear is assessed as well, including a body fat measurement.