Fourth Gap
Gap in Lycoming County, Pennsylvania · on the USGS Williamsport SE quadrangle
41.08841, -77.11330
Maps that show Fourth Gap
Get them in the map app
Williamsport SE, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Williamsport, PA
Old map for history, not navigation
USGS historical 15-minute topo (1923)
Williamsport, PA
Old map for history, not navigation
USGS historical 15-minute topo (1944)
Williamsport, PA
Old map for history, not navigation
USGS historical 15-minute topo (1953)
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-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).