Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Upper Midwest Water Science Center images.
Bridge over channel between Fence Lake and Big Crawling Stone Lake in Lac du Flambeau Chain of Lakes, Wisconsin
Bridge over channel between Fence Lake and Big Crawling Stone Lake in Lac du Flambeau Chain of Lakes, Wisconsin
Hydrologic Technician Matt Bach measuring streamflow day after a rain event at USGS streamgage 04085078, DUTCHMAN CREEK AT HANSEN RD AT ASHWAUBENON, WI, using an Acoustic Doppler Current Profiler (ADCP). The ADCP measures water currents by transmitting "pings" of sound at a constant frequency into the water.
Hydrologic Technician Matt Bach measuring streamflow day after a rain event at USGS streamgage 04085078, DUTCHMAN CREEK AT HANSEN RD AT ASHWAUBENON, WI, using an Acoustic Doppler Current Profiler (ADCP). The ADCP measures water currents by transmitting "pings" of sound at a constant frequency into the water.
A USGS scientist conducts a groundwater well monitoring demonstration at Miesville Ravine Park, Minnesota.
A USGS scientist conducts a groundwater well monitoring demonstration at Miesville Ravine Park, Minnesota.
A USGS hydrologic technician finishes installation of a rapid-deployment streamgage at Gordonville Road on the Tittabawassee River in Midland, Michigan.
A USGS hydrologic technician finishes installation of a rapid-deployment streamgage at Gordonville Road on the Tittabawassee River in Midland, Michigan.
This image shows a GLRI nutrient sampler submerged during major flooding on the Rifle River, Michigan, in May 2020. This site is near the Rifle River Near Sterling USGS streamgage.
This image shows a GLRI nutrient sampler submerged during major flooding on the Rifle River, Michigan, in May 2020. This site is near the Rifle River Near Sterling USGS streamgage.
Map of Green Lake, Wisconsin, and its watershed, with sampling data.
Map of Green Lake, Wisconsin, and its watershed, with sampling data.
(L to R) Research Hydrologist Laura Hubbard, Supervisory Hydrologist Carrie Givens, and Microbiologist Erin Stelzer pose with filtration spike experiment equipment at the Michigan Bacteriological Research Laboratory (MI-BaRL) in Lansing, Michigan.
(L to R) Research Hydrologist Laura Hubbard, Supervisory Hydrologist Carrie Givens, and Microbiologist Erin Stelzer pose with filtration spike experiment equipment at the Michigan Bacteriological Research Laboratory (MI-BaRL) in Lansing, Michigan.
Hydrologic Technician Jarvis Kaderlik makes a discharge measurement at Allequash Creek near Sayner, Wisconsin, after making a long snowmobile trip and walking a half mile to the stream gage with plenty of snow on the ground. https://waterdata.usgs.gov/monitoring-location/05357205/
Hydrologic Technician Jarvis Kaderlik makes a discharge measurement at Allequash Creek near Sayner, Wisconsin, after making a long snowmobile trip and walking a half mile to the stream gage with plenty of snow on the ground. https://waterdata.usgs.gov/monitoring-location/05357205/
View from Durand bridge of boat crew conducting multibeam surveys
View from Durand bridge of boat crew conducting multibeam surveys
Sediment core sample taken at Grubers Grove Bay on the Wisconsin River, Wisconsin.
Sediment core sample taken at Grubers Grove Bay on the Wisconsin River, Wisconsin.
Canada geese in large numbers can contribute fecal contamination to waterbodies.
Canada geese in large numbers can contribute fecal contamination to waterbodies.
A hypothetical configuration of one of the two drained field sites, including a weather station for measuring climate data, a piezometer network for continuous water level measurements, soil moisture probes, and subsurface drainage flow. The third undrained field site will have a similar configuration, with the absence of subsurface drainage flow.
A hypothetical configuration of one of the two drained field sites, including a weather station for measuring climate data, a piezometer network for continuous water level measurements, soil moisture probes, and subsurface drainage flow. The third undrained field site will have a similar configuration, with the absence of subsurface drainage flow.
Durand streamgage mounted to bridge - looking downstream.
Durand streamgage mounted to bridge - looking downstream.
Hydrologic Technician using crane to collect a bedload sample from the bridge.
Hydrologic Technician using crane to collect a bedload sample from the bridge.
Map of dissolved oxygen and turbidity along the Milwaukee River.
These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science.
Map of dissolved oxygen and turbidity along the Milwaukee River.
These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science.
The Winnebago Pool is a chain of 4 shallow lakes in Wisconsin. The drawing relates real-time monitoring as well as sampling that took place on the lakes, the agricultural factors affecting the nutrient loading of the pool, and the importance of the Winnebago Pool fishery.
The Winnebago Pool is a chain of 4 shallow lakes in Wisconsin. The drawing relates real-time monitoring as well as sampling that took place on the lakes, the agricultural factors affecting the nutrient loading of the pool, and the importance of the Winnebago Pool fishery.
Great Lakes tributaries are influenced by a multitude of stressors that may cause adverse ecological effects. The drawing represents 5 of the many significant chemicals effecting the ecosystems – Atrazine, Deet, BPA, Metolachlor, and 4-nonylphenol.
Great Lakes tributaries are influenced by a multitude of stressors that may cause adverse ecological effects. The drawing represents 5 of the many significant chemicals effecting the ecosystems – Atrazine, Deet, BPA, Metolachlor, and 4-nonylphenol.
USGS Mercury research team collecting fish in Everglades National Park, Florida.
USGS Mercury research team collecting fish in Everglades National Park, Florida.
Panoramic view of USGS employees at a sampling site in Florida Everglades.
Panoramic view of USGS employees at a sampling site in Florida Everglades.
USGS scientists filter water while in the field in the Florida Everglades, to detect mercury in environmental samples.
USGS scientists filter water while in the field in the Florida Everglades, to detect mercury in environmental samples.
Scientists filtering water in the field at Everglades National Park, Florida.
Scientists filtering water in the field at Everglades National Park, Florida.