Stream habitat data is collected along a series of transects marked by tape measure and includes estimating rock size categories (for example, sand, gravel, cobble, boulders) with a guide (shown).
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Stream habitat assessment along a transect
Stream habitat data is collected along a series of transects marked by tape measure and includes estimating rock size categories (for example, sand, gravel, cobble, boulders) with a guide (shown).
Stream habitat measurement along a transect
Stream habitat measurement showing meter stick and gravelometer used to measure channel depths and particle sizes.
Stream habitat measurement showing meter stick and gravelometer used to measure channel depths and particle sizes.
Bank height above water surface assessment
Bank height above the water surface is measured at each transect along a stream reach to estimate the channel and bed substrate as well as the type and size of sediment size that can be transported by the stream.
Bank height above the water surface is measured at each transect along a stream reach to estimate the channel and bed substrate as well as the type and size of sediment size that can be transported by the stream.
Hoan Bridge in Milwaukee, Wisconsin
Hoan Bridge in Milwaukee, Wisocnsin with Lake Michigan in the background, taken from Inner Milwaukee Harbor.
Hoan Bridge in Milwaukee, Wisocnsin with Lake Michigan in the background, taken from Inner Milwaukee Harbor.
Eagle Creek at Zionsville, IN bridge
Eagle Creek at Zionsville, IN bridge
Eagle Creek at Zionsville, IN - ADCP bridge measurement
Eagle Creek at Zionsville, IN - ADCP bridge measurementEagle Creek at Zionsville, IN - ADCP bridge measurement
Eagle Creek at Zionsville, IN - ADCP bridge measurement
Eagle Creek at Zionsville, IN - ADCP bridge measurementEagle Creek at Zionsville, IN - ADCP bridge measurement
Lake Trout
Lake trout historically supported the most valuable freshwater commercial fisheries in North America, but their populations crashed in parts of the Great Lakes during the 1950s and 1960s due to overfishing and invasive species.
Lake trout historically supported the most valuable freshwater commercial fisheries in North America, but their populations crashed in parts of the Great Lakes during the 1950s and 1960s due to overfishing and invasive species.
Edge-of-field: runoff before and after conservation practice install
Edge-of-field: runoff before and after conservation practice installThese photos, taken before and after a grassed-waterway conservation practice was installed, show a change in the water clarity of agricultural runoff at an edge-of-field surface monitoring site in Wisconsin.
Edge-of-field: runoff before and after conservation practice install
Edge-of-field: runoff before and after conservation practice installThese photos, taken before and after a grassed-waterway conservation practice was installed, show a change in the water clarity of agricultural runoff at an edge-of-field surface monitoring site in Wisconsin.
School Branch at Brownsburg IN - ADCP measurement
School Branch at Brownsburg IN - ADCP measurement
School Branch at Brownsburg IN gage equipment
School Branch at Brownsburg IN gage equipment
Sleeping Bear Dunes, Michigan
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
Sleeping Bear Dunes National Lakeshore
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
The USGS monitors water quality at the Sleeping Bear Dunes National Lakeshore in Empire, Michigan.
Farm in southern Wisconsin
Cows feed on a farm in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Cows feed on a farm in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Small stream in northern Indiana
A small stream flows through corn fields in northern Indiana. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
A small stream flows through corn fields in northern Indiana. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Farm in southern Wisconsin
An irrigation system waters crops in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
An irrigation system waters crops in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Kankakee River at Shelby, IN - upstream from bridge
Kankakee River at Shelby, IN - upstream from bridgeKankakee River at Shelby, IN - upstream from bridge
Kankakee River at Shelby, IN - upstream from bridge
Kankakee River at Shelby, IN - upstream from bridgeKankakee River at Shelby, IN - upstream from bridge
Water-quality equipment - fouled sonde
Water-quality equipment - fouled sonde
Water-quality sonde
Water-quality sonde
School Branch at Brownsburg IN - flooding
School Branch at Brownsburg IN - flooding
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration ProjectUSGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
Assessment of the Cottrellville Shoreline Restoration Project
Assessment of the Cottrellville Shoreline Restoration ProjectUSGS scientists conduct a post-construction assessment of the Cottrellville Shoreline Restoration Project on the St. Clair River, Michigan.
Sediment accumulation along a downstream concrete lined reach of river
Sediment accumulation along a downstream concrete lined reach of riverSediment accumulation along a downstream concrete lined reach of the Kinnickinnic River, April 2016.
Sediment accumulation along a downstream concrete lined reach of river
Sediment accumulation along a downstream concrete lined reach of riverSediment accumulation along a downstream concrete lined reach of the Kinnickinnic River, April 2016.