Lake Wilhelm
Reservoir in Mercer County, Pennsylvania · on the USGS Hadley quadrangle
41.41213, -80.12974
Maps that show Lake Wilhelm
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Hadley, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Stoneboro, PA
Old map for history, not navigation
USGS historical 15-minute topo (1911)
Stoneboro, PA
Old map for history, not navigation
USGS historical 15-minute topo (1913)
Stoneboro, PA
Old map for history, not navigation
USGS historical 15-minute topo (1943)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-30 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-32 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-11 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-10 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-12 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).