Black Rock Lake
Reservoir in Montgomery County, Pennsylvania · on the USGS Phoenixville quadrangle
40.15989, -75.50946
Maps that show Black Rock Lake
Get them in the map app
Phoenixville, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Phoenixville, PA
Old map for history, not navigation
USGS historical 15-minute topo (1906)
Phoenixville, 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 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
Name, class, county and location: USGS Geographic Names Information System (public domain).