Map of the Delaware River Basin
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Map of the Delaware River Basin
Map of the Delaware River Basin
Scuba Diver Navigating
A scuba diver navigates his field site underwater.
A scuba diver navigates his field site underwater.
Willamette River through downtown Portland, OR
Photograph of the Willamette River passing through downtown Portland, OR.
Photograph of the Willamette River passing through downtown Portland, OR.
Storm Sampling on the Clinch River
Hydrotechs lowering sampler for sample collection.
Hydrotechs lowering sampler for sample collection.
Storm Sampling on the Clinch River
A wagon is used to move the churn to the sampler. It makes it easier to tote.
A wagon is used to move the churn to the sampler. It makes it easier to tote.
Storm Sampling on the Clinch River
Hydrotech lowering "fish" off of a bridge for storm sampling.
Hydrotech lowering "fish" off of a bridge for storm sampling.
Storm Sampling on the Clinch River
Storm sampling in action.
Storm Sampling on the Clinch River
"Fish" ready to be lowered from bridge for storm sampling.
"Fish" ready to be lowered from bridge for storm sampling.
Dam with overflow pipe discharging water from spring
Dam with overflow pipe discharging water from springDam with overflow pipe discharging water from spring (109) near Lee Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Monday, November 15, 2010.
Data Series 750
Dam with overflow pipe discharging water from spring
Dam with overflow pipe discharging water from springDam with overflow pipe discharging water from spring (109) near Lee Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Monday, November 15, 2010.
Data Series 750
Celebrating the First USGS Streamgage
The first USGS streamgage, at Embudo, New Mexico, just turned 125 years old.
The first USGS streamgage, at Embudo, New Mexico, just turned 125 years old.
Washington River
Beautiful River with Mount Rainier in the background
Beautiful River with Mount Rainier in the background
Pembina River
The Pembina River located at Neche, North Dakota.
The Pembina River located at Neche, North Dakota.
Cannonball River
The Cannonball River in the fall at Breien, ND.
The Cannonball River in the fall at Breien, ND.
Another Day at the Office
Solomon Gulch at Top of Falls during Solomon Lake sill event. Hydrographer in the photo is Jeff Wiles of the Anchorage Field Office.
Solomon Gulch at Top of Falls during Solomon Lake sill event. Hydrographer in the photo is Jeff Wiles of the Anchorage Field Office.
Big Muddy Creek-Open Water
Looking downstream toward beaver dam on Big Muddy Creek near Almont, North Dakota. Flow is 4.40 cubic feet per second.
Looking downstream toward beaver dam on Big Muddy Creek near Almont, North Dakota. Flow is 4.40 cubic feet per second.
Measuring Streamflow
USGS hydrologic technician measuring streamflow in the Merced River, near Happy Isles stream gage in Yosemite Valley.
USGS hydrologic technician measuring streamflow in the Merced River, near Happy Isles stream gage in Yosemite Valley.
Spring near Leon Creek in the Trinity aquifer outcrop
Spring near Leon Creek in the Trinity aquifer outcropSpring (113) near Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Data Series 750
Spring near Leon Creek in the Trinity aquifer outcrop
Spring near Leon Creek in the Trinity aquifer outcropSpring (113) near Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Data Series 750
Spring near headwaters of Leon Creek, Trinity aquifer, Data Series 750
Spring near headwaters of Leon Creek, Trinity aquifer, Data Series 750Spring (104) near the headwaters of Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Spring near headwaters of Leon Creek, Trinity aquifer, Data Series 750
Spring near headwaters of Leon Creek, Trinity aquifer, Data Series 750Spring (104) near the headwaters of Leon Creek in the Trinity aquifer outcrop, northern Bexar County, Texas. Photograph taken on Tuesday, October 5, 2010.
Red River of the North at Grand Forks
Red River of the North at Grand Forks on September 27, 2010.
Red River of the North at Grand Forks on September 27, 2010.
Little Missouri River near Camp Area C at Albert Pike Recreation Area
Little Missouri River near Camp Area C at Albert Pike Recreation AreaLittle Missouri River near Camp Area C at Albert Pike Recreation Area, Arkansas (photograph by Daniel M. Wagner, U.S. Geological Survey).
Little Missouri River near Camp Area C at Albert Pike Recreation Area
Little Missouri River near Camp Area C at Albert Pike Recreation AreaLittle Missouri River near Camp Area C at Albert Pike Recreation Area, Arkansas (photograph by Daniel M. Wagner, U.S. Geological Survey).
Remnants of a spruce forest
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.
Remnants of a spruce forest complex following a severe wildfire in the Yukon Flats National Wildlife Refuge, Alaska. Wildfires are the dominant landscape-scale disturbance operating at annual time scales in Alaska, and fires play a major role in the rate and extent of vegetation growth and productivity of a site.