Horsethief Opening
Flat in Mendocino County, California · on the USGS Bailey Ridge quadrangle
39.19573, -123.40973
Maps that show Horsethief Opening
Get them in the map app
Bailey Ridge, CA — USGS 7.5-minute topo (2023)
USGS Topo Maps (public domain) · California
Public domain
Boonville, CA — USGS historical 15-minute topo (1943)
USGS Historical Topo Maps (public domain) · California
Public domain
Boonville, CA — USGS historical 15-minute topo (1959)
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).