Big Ridge
Ridge in Clinton County, Pennsylvania · on the USGS Tamarack quadrangle
41.43710, -77.76644
Maps that show Big Ridge
Get them in the map app
Tamarack, PA
Detailed map of terrain, trails and roads
USGS topo, 2023

Renovo West, PA
Old map for history, not navigation
USGS historical 15-minute topo (1946)

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-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).