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Acoustic Doppler current profiler (ADCP), attached to a cable, measures streamflow in the middle of Rock River in Watertown, Wisconsin on a winter day.
Rock River at Watertown, WI - USGS Water Data for the Nation
Acoustic Doppler current profiler (ADCP), attached to a cable, measures streamflow in the middle of Rock River in Watertown, Wisconsin on a winter day.
Rock River at Watertown, WI - USGS Water Data for the Nation
Milwaukee Harbor in foreground with Discovery World building featured, on an early autumn day.
Milwaukee Harbor in foreground with Discovery World building featured, on an early autumn day.
Cold groundwater seep identified using a handheld thermal infrared camera (FLIR E8) on the upper Namekagon River near Cable, Wisconsin. The groundwater discharge area was about 7-8 degrees cooler than the main channel of the Namekagon.
Cold groundwater seep identified using a handheld thermal infrared camera (FLIR E8) on the upper Namekagon River near Cable, Wisconsin. The groundwater discharge area was about 7-8 degrees cooler than the main channel of the Namekagon.
USGS New England Water Science Center physical scientist Shannon Fisher documenting the location of a groundwater seep under a pine tree on the Namekagon River near Cable, Wisconsin.
USGS New England Water Science Center physical scientist Shannon Fisher documenting the location of a groundwater seep under a pine tree on the Namekagon River near Cable, Wisconsin.
National Park Service Great Lakes Inventory and Monitoring Network (GLKM) biologist Ted Gostomski uses a handheld thermal infrared sensor to identify cold groundwater seeps in the upper Namekagon River near Cable, Wisconsin. Al Kirschbaum, a remote sensing specialist with the NPS-GLKM, documents Gostomski's findings from the canoe.
National Park Service Great Lakes Inventory and Monitoring Network (GLKM) biologist Ted Gostomski uses a handheld thermal infrared sensor to identify cold groundwater seeps in the upper Namekagon River near Cable, Wisconsin. Al Kirschbaum, a remote sensing specialist with the NPS-GLKM, documents Gostomski's findings from the canoe.
A USGS technician in a bright green safety jacket takes a photo of a flooded Little Menomonee River at Milwaukee, Wisconsin, after a flood in August 2025.
Little Menomonee River at Milwaukee, WI - USGS-04087070
https://waterdata.usgs.gov/monitoring-location/USGS-04087070/
A USGS technician in a bright green safety jacket takes a photo of a flooded Little Menomonee River at Milwaukee, Wisconsin, after a flood in August 2025.
Little Menomonee River at Milwaukee, WI - USGS-04087070
https://waterdata.usgs.gov/monitoring-location/USGS-04087070/
Flooded Little Menomonee River, in Milwaukee, Wisconsin at streamgage 04087070.
https://waterdata.usgs.gov/monitoring-location/USGS-04087070/
Flooded Little Menomonee River, in Milwaukee, Wisconsin at streamgage 04087070.
https://waterdata.usgs.gov/monitoring-location/USGS-04087070/
An acoustic Doppler current profiler (ADCP) device takes a streamflow measurement at streamgage 04087088 Underwood Creek, near Milwaukee, Wisconsin after a flood event in August 2025.
An acoustic Doppler current profiler (ADCP) device takes a streamflow measurement at streamgage 04087088 Underwood Creek, near Milwaukee, Wisconsin after a flood event in August 2025.
Floodwaters swirl in the foreground and trees peek up in the background, during flooding of the Menomonee River in Wauwatosa, Wisconsin in August 2025, at streamgage 04087120.
https://waterdata.usgs.gov/monitoring-location/USGS-04087120/
Floodwaters swirl in the foreground and trees peek up in the background, during flooding of the Menomonee River in Wauwatosa, Wisconsin in August 2025, at streamgage 04087120.
https://waterdata.usgs.gov/monitoring-location/USGS-04087120/
Jones Island streamgage on the shore of the Milwaukee River in Milwaukee, Wisconsin.
Milwaukee River at Mouth at Milwaukee, WI - USGS Water Data for the Nation
Jones Island streamgage on the shore of the Milwaukee River in Milwaukee, Wisconsin.
Milwaukee River at Mouth at Milwaukee, WI - USGS Water Data for the Nation
The center of a vibrant downtown and a commercial shipping hub, the Milwaukee Harbor teems with underwater activity in pockets of habitat full of aquatic life. But look on any map and the harbor is just a blue-black void. The map on this page fills in that gap and invites you to explore the complexity of this remarkable urban ecosystem.
The center of a vibrant downtown and a commercial shipping hub, the Milwaukee Harbor teems with underwater activity in pockets of habitat full of aquatic life. But look on any map and the harbor is just a blue-black void. The map on this page fills in that gap and invites you to explore the complexity of this remarkable urban ecosystem.
View of the Hoan Bridge in Milwaukee, Wisconsin with seagulls flying in foreground.
View of the Hoan Bridge in Milwaukee, Wisconsin with seagulls flying in foreground.
Biologist Pat Perner installs a streamgage at Allouez Bay at Wisconsin Point at Superior, Wisconsin.
https://waterdata.usgs.gov/monitoring-location/USGS-464144091594301/
Biologist Pat Perner installs a streamgage at Allouez Bay at Wisconsin Point at Superior, Wisconsin.
https://waterdata.usgs.gov/monitoring-location/USGS-464144091594301/
USGS Supervisory Hydrologic Technician Ben Torrison installs an automated sampler and wireless camera at Barker’s Island to aid in the remote observation of nearshore algal blooms.
USGS Supervisory Hydrologic Technician Ben Torrison installs an automated sampler and wireless camera at Barker’s Island to aid in the remote observation of nearshore algal blooms.
Experimental flow through system for testing lignin foam composite for mercury removal in natural surface waters.
Experimental flow through system for testing lignin foam composite for mercury removal in natural surface waters.
Streamgage at sunset at Allouez Bay at Wisconsin Point at Superior, Wisconsin
https://waterdata.usgs.gov/monitoring-location/USGS-464144091594301/
Streamgage at sunset at Allouez Bay at Wisconsin Point at Superior, Wisconsin
https://waterdata.usgs.gov/monitoring-location/USGS-464144091594301/
A large plastic sample bottle contains water and brown lignin settling at the bottom. This is used in benchtop experiments to explore how effective the lignin composites are for removing mercury.
A large plastic sample bottle contains water and brown lignin settling at the bottom. This is used in benchtop experiments to explore how effective the lignin composites are for removing mercury.
USGS M3 Research Laboratory summer research student Noor from the University of Wisconsin: Freshwater@UW Summer Research Opportunties Program (Freshwater@UW Summer Research Opportunities Program - Water@UW-Madison) learning how to construct columns for flow through testing with USDA
USGS M3 Research Laboratory summer research student Noor from the University of Wisconsin: Freshwater@UW Summer Research Opportunties Program (Freshwater@UW Summer Research Opportunities Program - Water@UW-Madison) learning how to construct columns for flow through testing with USDA
Map of the Upper Peninsula of Michigan and nearby areas of Northern Wisconsin, with areas of overflights shaded in yellow (Wisconsin) and green (Michigan).
Map of the Upper Peninsula of Michigan and nearby areas of Northern Wisconsin, with areas of overflights shaded in yellow (Wisconsin) and green (Michigan).
This is a geologic map showing the Quaternary geology of the state of Wisconsin. It is an update to an older map that was published in 2025 after many years of mapping done by the Wisconsin Geological and Natural History Survey.
This is a geologic map showing the Quaternary geology of the state of Wisconsin. It is an update to an older map that was published in 2025 after many years of mapping done by the Wisconsin Geological and Natural History Survey.
A gray metal streamgage housing with an attached solar panel sits on the Wisconsin shore of a snow-covered frozen Menominee River. Michigan is in the background across the river.
Streamgage 04065106 Menominee River at Niagara, Wisconsin.
A gray metal streamgage housing with an attached solar panel sits on the Wisconsin shore of a snow-covered frozen Menominee River. Michigan is in the background across the river.
Streamgage 04065106 Menominee River at Niagara, Wisconsin.