Images

Paul Schuster, USGS, holding an ice core of Aufice (meaning over ice). Each layer represents a groundwater overflow event. Groundwater flows are predicted to increase with warming temperatures likely affecting the formation of Aufice in the Yukon River basin.

USGS Scientist Mark Roth listening to frog calls. Coolecting frog calls allows scientists to determine distribution of species.

Example of wellhead plumbing typical of public wells sampled in a USGS study of 932 public wells nationwide. About 105 million people—or more than one-third of the Nation's population—receive their drinking water from one of the 140,000 public water systems across the United States that rely on groundwater pumped from public wells.

Manatee Spring looking toward main vent.  One of many springs in Florida USGS began a data collection on in 2001. 

View of the Alalpaha River draining into a sink in the riverbed during a major drought. 

View of mountainous coastline in South Africa showing urban development.

Scenic view of coastline in South Africa.

The Rio Grande as it flows in Big Bend National Park, mostly flow from the Rio Conchos in Mexico.  The canyon is downstream of the USGS gage.

Dan Edwards and Gary Wall attach a hydroacoustic and turbidity equipment package to a tripod for deployment on the bottom of the Hudson River near Poughkeepsie, NY

Clear cool water over a limestone rock and gravel riverbed is characteristic of many Texas Hill County Creeks and Rivers. 

USGS regional research drill rig constructing sites near the south bank of the Truckee River just downstream of USGS 10350000 Truckee River at Vista. The wells were constructed to investigate surface water groundwater interaction.

Batavia Kill at Red Falls, Greene County, NY

USGS scientists taking water samples in the tidal marsh on Long Island.

Long Island

More than 40 million people in the U.S. rely on domestic wells, like the one shown here, for their drinking water. Concentrations of groundwater at the wellhead typically are low, but lead can leach into the water from corrosion of household plumbing that contains lead.

Long Island core samples

Groundwater sampling for water quality on Long Island, New York

An Everglades National Park coastal salt marsh crossed with drainage creeks.

U.S. Geological Survey streamflow-gaging station 08028500 Sabine River near Bon Wier, Texas, photograph looking from left bank adjacent to U.S. Highway 190 bridge, May 30, 1999.

SIR 2009–5174

Florida's Atlantic coastal dune with typical vegetation such as seaoats and Spanish bayonets. Trails to the beach cut through the dune. Photograph taken circa 1998.

Burned-out buildings in downtown Grand Forks, North Dakota.