Twin Knobs
Summit in Douglas County, Oregon · on the USGS Pumice Desert West quadrangle
43.10029, -122.21916
Maps that show Twin Knobs
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Pumice Desert West, OR — USGS 7.5-minute topo (2024)
USGS Topo Maps (public domain) · Oregon
Public domain
Diamond Lake, OR — USGS historical 15-minute topo (1956)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Diamond Lake Ranger District — East Motor Vehicle Use Map (MVUM) — Umpqua National Forest (2024)
Forest Service Maps (public domain) · Umpqua National Forest
Public domain
Diamond Lake Ranger District — West Motor Vehicle Use Map (MVUM) — Umpqua National Forest (2024)
Forest Service Maps (public domain) · Umpqua National Forest
Public domain
IFR Enroute Low Altitude Chart L-02 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-01 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-11 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-13 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute High Altitude Chart H-03 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute High Altitude Chart H-01 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-01 (Alaska) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).