Knapp Flowage
Reservoir in Polk County, Wisconsin · on the USGS Clam Falls quadrangle
45.70492, -92.37487
Maps that show Knapp Flowage
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Clam Falls, 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 High Altitude Chart H-02 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).