Grass Lake
Lake in Rock County, Wisconsin · on the USGS Cooksville quadrangle
42.79540, -89.24322
Maps that show Grass Lake
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Cooksville, WI
USGS topo, 2022
Stoughton, WI
USGS historical 15-minute topo (1890)
Stoughton, WI
USGS historical 15-minute topo (1961)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-28 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).