Images

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.  

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.

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.

Streamflow measurement at Milk River near Harlem, Montana

Photo of silver capsules containing reference water used for the calibration of stable hydrogen and oxygen measurements. This reference material is intended for calibration of stable hydrogen (δ²H) and oxygen (δ¹⁸O) measurements of unknown water or hydrogen- or oxygen-bearing substances with a TC/EA (thermal conversion/elemental analyzer)

Reston stable isotope lab RSIL Reference Hair

Reston stable isotope lab RSIL Reference Oil

Reston stable isotope lab RSIL Reference Powder

Photo of glass ampoules of reference material VSMOW. This reference material (RM) is an international measurement standard that defines the zero of the δ² H and δ¹⁸O Vienna Standard Mean Ocean Water–Standard Light Antarctic Precipitation (VSMOW-SLAP) isotope scales in water and in all other hydrogen-bearing substances and in selected oxyge

USGS Stream Gage 14315950 FISH CREEK ABV SLIPPER CREEK NR TOKETEE FALLS, OR . 

Station operated in cooperation with PacifiCorp.

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

Dead Run is an urban creek in Catonsville, Maryland, near Baltimore. Research has found that about half of the bed sediment originates as particulate matter on pavement that then is washed into the creek via storm drains.

An analog dial gage (left) and a digital linear potentiometer (right with blue barrel) used to measure land-surface movement in response to aquifer system deformation at the USGS Nansemond extensometer.