Devils Marsh
Swamp in Polk County, Wisconsin · on the USGS Big Round Lake quadrangle
45.55384, -92.29991
Maps that show Devils Marsh
Get them in the map app
Big Round Lake, WI
Detailed map of terrain, trails and roads
USGS topo, 2022
Frederic, WI
Old map for history, not navigation
USGS historical 15-minute topo (1955)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-14 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-12 (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).