The Island
Summit in Mendocino County, California · on the USGS Willits quadrangle
39.49334, -123.34061
Maps that show The Island
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Willits, CA — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · California
Public domain
Willits, CA — USGS historical 15-minute topo (1922)
USGS Historical Topo Maps (public domain) · California
Public domain
Willits, CA — USGS historical 15-minute topo (1942)
USGS Historical Topo Maps (public domain) · California
Public domain
Willits, CA — USGS historical 15-minute topo (1944)
USGS Historical Topo Maps (public domain) · California
Public domain
Willits, CA — USGS historical 15-minute topo (1961)
USGS Historical Topo Maps (public domain) · California
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-03 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute High Altitude Chart H-04 (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
Name, class, county and location: USGS Geographic Names Information System (public domain).