Black Mountain Ridge
Ridge in Sonoma County, California · on the USGS Fort Ross quadrangle
38.51720, -123.17207
Maps that show Black Mountain Ridge
Get them in the map app
Fort Ross, CA — USGS 7.5-minute topo (2021)
USGS Topo Maps (public domain) · California
Public domain
Skaggs, CA — USGS historical 15-minute topo (1921)
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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).