South Red Iron Lake is located in central Marshall County, South Dakota. Major land use in the watershed is range and pasture land. South Red Iron was called Cottonwood Lake in 1910 atlas.
The latitude and longitude coordinates for this lake are 45.6697, -97.3181 and the altitude is 1831 feet (558 meters).
South Red Iron
Maximum Depth: 15 feet
Mean Depth: 8 feet
Lake Volume: 5,064 acre-ft
Surface Area: 7610 acres
Shoreline Length: 7.5 miles
Watershed Acres: 26,477 acres
Major Tributaries: Two small unnamed tributaries, one acts as an inlet/outlet dependent on lake levels from North Red Iron Lake.
Warm Water Permanent Fisheries: black bullhead, black crappie, bluegill, common carp, fathead minnow, largemouth bass, northern pike, smallmouth bass, walleye, white sucker, yellow perch.
Watershed Map
SD GF&P Lake Contour Map
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