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Explore water-related photography, imagery, and illustrations.
USGS streamgage number 13309220 on Idaho's Middle Fork of the Salmon River in the Frank Church River of No Return Wilderness Area.
USGS streamgage number 13309220 on Idaho's Middle Fork of the Salmon River in the Frank Church River of No Return Wilderness Area.
U.S. Geological Survey hydrographers preparing the Shavano Park at Fawn Drive site for hydrologic and water-quality monitoring. Located in the Edwards Aquifer, Texas
U.S. Geological Survey hydrographers preparing the Shavano Park at Fawn Drive site for hydrologic and water-quality monitoring. Located in the Edwards Aquifer, Texas
Recently retired hydrologic technician Doug Hutchinson services gage 10329500 MARTIN Creek near Paradise Valley, NV, March of 2019. This gage is designated as a centennial gage for FY21! Happy birthday, Martin Creek near Paradise Valley!
Recently retired hydrologic technician Doug Hutchinson services gage 10329500 MARTIN Creek near Paradise Valley, NV, March of 2019. This gage is designated as a centennial gage for FY21! Happy birthday, Martin Creek near Paradise Valley!
This is an animation showing the changing conditions of USGS streamgages for Water Year 2018 (October 1, 2017 to September 30, 2018). The conditions shown range from the driest condition seen at a gage to the wettest.
This is an animation showing the changing conditions of USGS streamgages for Water Year 2018 (October 1, 2017 to September 30, 2018). The conditions shown range from the driest condition seen at a gage to the wettest.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Jefferson, SD in March 2019. Measurements for this site were 52,000 cfs at a gage height of 40.14 ft.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Jefferson, SD in March 2019. Measurements for this site were 52,000 cfs at a gage height of 40.14 ft.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Hawarden, Iowa in March 2019.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Hawarden, Iowa in March 2019.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
After record flooding on the Big Sioux River, USGS crews mobilized to take important water measurements.
Groundwater science doesn't take a winter vacation! In this photo, USGS hdyrologic technician Jeremiah Pomerleau has snowshoed to a USGS groundwater monitoring site in Eustis, Maine. USGS scientists visit USGS groundwater observation wells year-round to measure water levels and maintain equipment.
Groundwater science doesn't take a winter vacation! In this photo, USGS hdyrologic technician Jeremiah Pomerleau has snowshoed to a USGS groundwater monitoring site in Eustis, Maine. USGS scientists visit USGS groundwater observation wells year-round to measure water levels and maintain equipment.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Hawarden, Iowa in March 2019.
USGS scientists and technicians took water measurements during flooding on the Big Sioux River near Hawarden, Iowa in March 2019.
After record flooding in the Midwest, USGS crews mobilized to take important water measurements.
After record flooding in the Midwest, USGS crews mobilized to take important water measurements.
USGS Dakota Water Science Center hydrologic technician Mark Brazones is using a handheld acoustic meter to measure the road overflow at the James River near Forestburg, SD.
USGS Dakota Water Science Center hydrologic technician Mark Brazones is using a handheld acoustic meter to measure the road overflow at the James River near Forestburg, SD.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
USGS technician Chris Broz helps take water measurements on the Big Sioux River during record flooding in March, 2019.
Photo of the Deleware River near Lambertville, NJ and New Hope, PA.
Photo of the Deleware River near Lambertville, NJ and New Hope, PA.
Diagram of Channel Cross Section With Subsections.
Diagram of Channel Cross Section With Subsections.
USGS hydrologist Kassidy Mapel takes hydrologic measurements from the Kewaunee River, Kewaunee, Wis., at USGS streamgage 04085200.
USGS hydrologist Kassidy Mapel takes hydrologic measurements from the Kewaunee River, Kewaunee, Wis., at USGS streamgage 04085200.