Multimedia Gallery

Depth-averaged velocity and primary and secondary velocities (Rozovskii definition) in the confluence of the White and Wabash Rivers along the Illinois and Indiana border, January 12, 2008. Produced in VMT using data from a TRDI 1200 KHz Rio Grande ADCP and additional formatting using Adobe Illustrator.

Depth-averaged currents and distribution of near-surface specific conductance in coastal Lake Erie in the vicinity of Villa Angela Beach and Euclid Creek, Ohio on September 11, 2012 Produced in VMT using data from a TRDI 600 KHz Rio Grande ADCP and supplementary specific conductance data from an autonomous underwater vehicle (AUV) that completed a simulataeous three-

Photomicrographs from a Common Eider (Somateria mollissima) from Massachusetts, USA. (A) Multiple pale foci of acute hepatic necrosis. (B) Multiple foci of acute pancreatic necrosis (arrow).

Photographs from a Common Eider (Somateria mollissima) from Massachusetts, USA. (A) There are scattered, small, pale foci in the liver. (B) Petechial and ecchymotic hemorrhages are present in the pancreas.

A group of Pacific walruses during summer in the Chukchi Sea

The May 29 overflight provided updated thermal images of Kīlauea summit, covering the caldera floor and showing the warm surface of the water lake in Halema‘uma‘u crater. No significant changes were observed in the surface temperature of Kīlauea's summit crater lake. Small hotspots are also present on the walls of Halema‘uma‘u due to fumaroles. This preliminary thermal map

The May 29 overflight provided updated aerial photographs of Kīlauea summit, covering the caldera floor and showing the current size of the water lake in Halema‘uma‘u crater. The water lake has a surface area of approximately 25,000 square meters (6.2 acres), which is more than double the area measured in late December, when it was 11,000 square meters (2.7 acres). The

Glaucous-winged gull with externally attached GPS satellite transmitter, Soldotna, Alaska

Geology of Yellowstone Map zoomed into the Lower Geyser Basin. This view shows a park-wide geologic map overlaid on a shaded relief layer from a digital elevation model. Red diamonds and black circles show geysers and gas sample locations, respectively.

A Light Detection and Ranging (LiDAR) shaded relief image overlaid on an aerial imagery basemap. The Sulphur Hills, part of the Sour Creek Resurgent Dome, are visible in the upper half of the image, while the floodplain and meanders of Pelican Creek are visible at the bottom. Black lines show faults, blue lines symbolize watercourses, and shaded polygons show waterbodies

Hydrologic technician Russ Miller navigates a remote-controlled acoustic Doppler current profiler into position to measure streeambed elevation at a highway bridge over the Payette River near Letha, Idaho. Technicians from the USGS Idaho Water Science Center used the ADCP measurements to verify the accuracy of two sonar devices installed on the bridge that transmit real-

A USGS hydrologic technician finishes installation of a rapid-deployment streamgage at Gordonville Road on the Tittabawassee River in Midland, Michigan. A USGS crew in the distance makes streamflow measurements using a boat-mounted acoustic Doppler current profiler. The USGS responded to major flooding at some locations in lower

This image shows a GLRI nutrient sampler submerged during major flooding on the Rifle River, Michigan, in May 2020. This site is near the Rifle River Near Sterling USGS streamgage.

Barry Arm of Harriman Fjord, Prince William Sound, Alaska. Included is Barry Glacier and Cascade Glacier.

A dragonfly nymph

Mobile view of the Yellowstone Volcano Observatory website.

Archive view of the Yellowstone Volcano Observatory website in 2009.

Archive view of the Yellowstone Volcano Observatory website in 2001.

USGS scientists collect field data at Gulkana Glacier in the eastern Alaska Range. The checkerboard sampling pattern in the foreground indicates where snow pit density measurements were collected. A series of snow cores (one is laying on top of the black tool box) collected by drilling into the seasonal snowpack will be used to measure the density at even deeper depths. If

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

USGS hydrologist Ken McGrath measures floodwaters off a cableway on Schoharie Creek in North Blenheim, New York.

Damselfly nymph

Damselfly nymph

Grand Prismatic Spring in Midway Geyser Basin Yellowstone National Park on October 19, 2017.

Sunset lake in Black Sand Basin of Yellowstone National Park

USGS hydrographer Dave Thompson makes a near-peak flood measurement off a bridge at Tenmile River in Tusten, New York.

Photograph showing the well house for USGS site 345603110450301 (Winslow T Well), southwest of Winslow, AZ.

On April 10, USGS hydrographer Josh Sundberg measures Red River water flowing over the road in East Grand Forks, Minnesota as flood protection walls prevent further flooding.
 

Scientists with the Interagency Grizzly Bear Study Team have seen the first female grizzly bear with cubs of the year for 2020 in Yellowstone National Park. The radio-collared female was seen with 3 cubs during a telemetry tracking flight on 4/10.  One of the 3 cubs is hard to see between the 2 obvious siblings, but you can just make out its head. This beautiful 13 year-

Photo of orange/red sandstone cliffs at Pictured Rocks National Park

USGS hydrographer Chris Broz gets on the cold ground to measure the high-water mark of the Pembina River at Neche, North Dakota. 
The USGS Dakota Water Science Center began their spring flood response on March 9, 2020, when melting snow caused river levels to exceed flood stage at sixteen USGS streamgage locations in eastern South Dakota.  At the height of operations

On April 6, USGS hydrographer Spencer Wheeling carries equipment out to measure high water on the Tongue River near Akra, North Dakota. 

The USGS Dakota Water Science Center began their spring flood response on March 9, 2020, when melting snow caused river levels to exceed flood stage at sixteen USGS streamgage locations in eastern South Dakota.  At the height of

Clear weather allowed HVO geologists to make observations and take measurements of the water pond at Kīlauea's summit. No major changes were observed, and the water level continues to slowly rise. Note the former HVO observation tower can be seen above the geologist's helmet. 

USGS hydrographer Brent Hanson wades out in freezing waters to collect flood measurements on the Sheyenne River near Cooperstown, North Dakota. Hanson reads an outside staff, which is a vertical graduated ruler used to calibrate the continuous readings of water level provided by electronic sensors. Water level is important information for communities living adjacent to

USGS hydrographer Spencer Wheeling gets equipment ready to collect a flood water-quality sample on the Wild Rice River near St. Benedict, North Dakota. Collecting water-quality samples helps communities assess the sources and fate of contaminants in aquatic systems, to protect and enhance water resources for human health, aquatic health and environmental quality.
The

A frozen USGS rapid deployment streamgage measures the height of the Maple River near Page, North Dakota. RDGs can be installed on short notice to provide additional information at locations that are normally not gauged.
The USGS Dakota Water Science Center began their spring flood response on March 9, 2020, when melting snow caused river levels to exceed flood stage

USGS Education paper models collection includes dinosaurs and other fossils, and geologic processes like volcanoes and sand dune formation.

USGS Education has several paper models learners can color, cut out, and build. This photo shoes a stratovolcano, trilobite, nautiloid, triceratops, and pterodactyl

Key used in an educational lesson plan for identifying the composition and condition of corals and coralline algae in a core. (a) Two examples of Pocillopora in good taphonomic condition (<50% erosion or encrustation of the skeleton). Intervals in cores during which Pocillopora skeletons dominate and are in good condition represent times of good coral growth and active

Key used in an educational lesson plan for identifying the composition and condition of corals and coralline algae in a core. (a) Two examples of Pocillopora in good taphonomic condition (<50% erosion or encrustation of the skeleton). Intervals in cores during which Pocillopora skeletons dominate and are in good condition represent times of good coral growth and active

Photo of the Colorado River running through Marble Canyon near Nankoweap Creek (near River Mile 51.5) in the Grand Canyon, Arizona.

Scanning electron microprobe images show the complexity of tiny Icelandic ash grains (150 micron, or 0.006 inch). Image (a) shows a dense and blocky grain, and (b) shows a foamy grain.

This section of brown Icelandic soil (top) contains 800 years of ash deposits erupted from five different volcanoes. The black layers, 5-10 cm (2-4 in) thick, are from Katla Volcano. A white arrow points to a closeup of the 1755 Katla ash deposit (lower left). The ash looks like specks of dust in the sample bag (lower right), but microprobe imaging reveals how complex

Field photograph taken for Polychlorinated Biphenyl (PCB) In Albuquerque Stormwater Channels Project, USGS - New Mexico Water Science Center

This photo was taken during an aerial photographic survey of seabirds and marine mammals along the California Coast. The project is supported by the Bureau of Ocean Energy Management and helps planning in advance of potential offshore wind energy development along the California Coast.

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