Monongahela River Pool Seven (historical)
Reservoir in Greene County, Pennsylvania · on the USGS Masontown quadrangle
39.78508, -79.91811
Maps that show Monongahela River Pool Seven (historical)
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Masontown, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Masontown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1900)
Masontown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1903)
Masontown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1931)
Masontown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1935)
Great Allegheny Passage Trail Map - Potomac Heritage National Scenic Trail
National Park Service Maps · Potomac Heritage National Scenic Trail
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-29 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-36 (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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).