Big Marsh
Swamp in La Crosse County, Wisconsin · on the USGS Pickwick quadrangle
43.97398, -91.38522
Maps that show Big Marsh
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Pickwick, MN-WI
Detailed map of terrain, trails and roads
USGS topo, 2022
La Crescent, MN
Old map for history, not navigation
USGS historical 15-minute topo (1956)
La Crescent, WI
Old map for history, not navigation
USGS historical 15-minute topo (1930)
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-02 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).