Images

A valley in the Grand Canyon, AZ

Sediment Deposit in the Grand Canyon, AZ

Did you know that plants can help us understand what is happening underground? Studying plants in an area can sometimes provide information about soil conditions, water availability, and water quality.

Did you know that plants can sometimes help us understand what is happening underground? Studying plants in an area can provide information about soil conditions, water availability, and water quality.

Installing dissolved oxygen sensors at the Salmon River near East Hampton, Connecticut

Hydrologic technician making a streamflow measurement using a FlowTracker ADV in a river.

Aerial image of stream and wetlands collected using a small unoccupied aicraft (sUAS) or drone at Ashville Bridge Creek, Back Bay National Wildlife Refuge (NWR), Virginia Beach, Virginia.

Aerial Image of the effects of the 2011 Missouri River Flood

Arial Image of the 2011 Missouri River Flood

Water Sampling on the Floodplain of the Missouri River

A modern coral reef in Dry Tortugas National Park. There is little living coral and high rates of bioerosion. Photo taken under research permit number DRTO-2018-SCI-0005. Credit: Lauren Toth, USGS

Map of the U.S. by state, showing total water withdrawals, 2015

Real-time flow meter installed on a center-pivot irrigation well in Mississippi County, Arkansas as part of a cooperative project conducted between USGS and the Arkansas Natural Resources Commission. The meter will measure water use for irrigation, providing data which will help improve water-use information in other locations as well.

High water mark sign at Yellowstone River at Carters Bridge

Peak-flow measurement at Flathead River at Flathead, British Columbia

Flooding in Soldier Pond, Maine, following rainfall and snowmelt that led to high water levels in the Fish and St. John Rivers in April and May of 2018.

USGS field crews installed a temporary rapid deployment gage on May 2, 2018, at Soldier Pond in the Fish River to monitor flooding near Fort Kent in Maine. 

Flooding in Soldier Pond, Maine, following rainfall and snowmelt that led to high water levels in the Fish and St. John Rivers in April and May of 2018. 

USGS field crews installed a temporary rapid deployment gage on May 2, 2018, at Soldier Pond in the Fish River to monitor flooding near Fort Kent in Maine.  

Screenshot of ModelMuse displaying WellFootprint results. The following words are displayed "We will contour the mesh... or in this case, the grid, I should say. So that's what it looks like."

Did you know that changes in the amount of water in aquifers cause small changes in Earth’s gravitational field? When the amount of groundwater in an aquifer changes, either by recharge or by discharge to surface water or wells, the gravitational acceleration at the land surface also changes.