Fern Spring
Spring in Shasta County, California · on the USGS Inwood quadrangle
40.61824, -121.95260
Maps that show Fern Spring
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Inwood, CA — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · California
Public domain
Whitmore, CA — USGS historical 15-minute topo (1956)
USGS Historical Topo Maps (public domain) · California
Public domain
OSVUM — Lassen National Forest (2023)
Forest Service Maps (public domain) · Lassen 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-11 (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
Name, class, county and location: USGS Geographic Names Information System (public domain).