Third Green Knob
Summit in Union County, Pennsylvania · on the USGS Woodward quadrangle
40.87721, -77.32011
Maps that show Third Green Knob
Get them in the map app
Woodward, PA
Detailed map of terrain, trails and roads
USGS topo, 2023
Millheim, PA
Old map for history, not navigation
USGS historical 15-minute topo (1941)
Millheim, PA
Old map for history, not navigation
USGS historical 15-minute topo (1957)
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).