Top Discharges

Streamgauges reporting the most discharge on the Grant River

10 Day Trend

Discharge comparison for the highest gauges over the past 10 days

Expected Streamflow Ranges

Streamflow discharge range for this time of year

The Grant River is a 44-mile-long (71 km) tributary of the upper Mississippi River in southwestern Wisconsin in the United States. It flows for its entire length in Grant County. The city of Potosi is located near its mouth. Tributaries include Boice Creek, Rattlesnake Creek, Pigeon Creek, Blake Fork, Little Grant River, Borah Creek, and Rogers Branch. As part of the Driftless Area of Wisconsin, the river has a substantial valley. The Army Corps of Engineers maintains the Grant River Recreation Area at the river's mouth. Camping, fishing and boating are the main attractions. The river was named for an ... Source: Wikipedia