Koosah Mountain
Summit in Lane County, Oregon · on the USGS South Sister quadrangle
44.02790, -121.82767
Maps that show Koosah Mountain
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South Sister, OR — USGS 7.5-minute topo (2023)
USGS Topo Maps (public domain) · Oregon
Public domain
Three Sisters, OR — USGS historical 15-minute topo (1959)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Deschutes Motor Vehicle Use Map 3 — Deschutes National Forest
Forest Service Maps (public domain) · Deschutes National Forest
Public domain
McKenzie River Ranger District — North Motor Vehicle Use Map (MVUM) — Willamette National Forest (2025)
Forest Service Maps (public domain) · Willamette National Forest
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).