Lock Alsh Reservoir
Reservoir in Montgomery County, Pennsylvania · on the USGS Ambler quadrangle
40.15645, -75.20343
Maps that show Lock Alsh Reservoir
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Ambler, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Germantown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1893)
Germantown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1894)
Germantown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1896)
Germantown, PA
Old map for history, not navigation
USGS historical 15-minute topo (1899)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Area Chart A-01 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-33 (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-34 (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).