Prairie Coteau Watershed Improvement & Protection Project

Clear Lake is located in central Marshall County south of Highway 10.   Land use in the watershed is about half cropland and half range/pastureland.


Clear Lake


Maximum Depth: 20 feet 

Mean Depth: 12 feet

Lake Volume: 13,044 acre-ft

Surface Area: 1,170 acres 

Shoreline Length: 7.6 miles

Watershed Acres: 21,826 acres


Major Tributaries: One unnamed tributary enters north from Long Lake,  a second unnamed tributary enters east from North Red Iron Lake.  Clear Lake overflows to  Roy Lake


Warm Water Permanent Fisheries: black bullhead, black crappie, bluegill, common carp, fathead minnow, green sunfish, johnny darter, largemouth bass, northern pike, smallmouth bass, walleye, white sucker, yellow perch


For additional information on Clear Lake click on the following links:


Watershed Map


SD GF&P Lake Contour Map