Images

USGS and FWS working together at Lake Mattamuskeet

Bird watching on the Quebrada Margarita at Río Piedras, Puerto Rico

Hydrologist calibrating a station at Lake Mattamuskeet

Hydrologist servicing a station on Lake Mattamuskeet

Scientists apply a new method for determining the fate of methane discharged into streams. Here, gas is injected into stream water along West Bear Creek, North Carolina. 

Scientists apply a new method for determining the fate of methane discharged into streams. Here, noble-gas (krypton) is injected using submerged gas-permeable tubing in West Bear Creek, North Carolina. 

Manatee swims in a Florida spring

USGS researcher collects data on manatee in Florida spring.

Sand dunes in Avon on Cape Hatteras, NC are the only separation between many beach house communities and the Atlantic Ocean. 

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

This diagram uses a "cylinder and pipe" layout to show the source (surface water or groundwater) of the North Carolina's freshwater and for what purposes the water was used in 2010. The data are broken out for each category of use by surface water and groundwater as the source.

An Appalachian Mountain Stream in the Spring. Photographed by Samuel H Austin

Photo of Sunset Beach, Florida, during tropical storm Colin in June 2016. The storm resulted in large waves and elevated water levels that caused erosion in this area, as can be seen in the scarp forming at the vegetation line. CMHRP researchers surveyed the elevation of the beach before and after the storm to quantify the storm's impacts.

Panoramic view (~270 degrees) looking across the Blue Ridge of Virginia, North Carolina and Tennessee (from left to right).  The Valley and Ridge is in the distance (gap between mountains). 

Radium Springs, Georgia, during drought conditions.

Landscape view Lake Mattamuskeet, North Carolina

► Project: Continuous Water-Quality Monitoring at Lake Mattamuskeet, North Carolina

Scientists used a core from this Massive Starlet (Siderastrea siderea) coral colony in Dry Tortugas National Park to reconstruct ocean temperatures going back to 1837. Photo: USGS

A USGS diver beside a Massive Starlet (Siderastrea siderea) coral colony in Dry Tortugas National Park. Scientists used a core from this coral to reconstruct ocean temperatures going back to 1837. Photo: USGS, May 2012

Pitcher plant, Sarracenia purpurea leaves filled with water in a bog in northern Florida.

Waterfall in Appalachian Forest