Big Flat
Lake in Mifflin County, Pennsylvania · on the USGS Spring Mills quadrangle
40.79185, -77.50788
Maps that show Big Flat
Get them in the map app
Spring Mills, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Centre Hall, PA
Old map for history, not navigation
USGS historical 15-minute topo (1924)
Centre Hall, PA
Old map for history, not navigation
USGS historical 15-minute topo (1929)
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-29 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-30 (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).