Ysidora Basin
Basin in San Diego County, California · on the USGS Morro Hill quadrangle
33.25809, -117.37032
Maps that show Ysidora Basin
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Pilgrim Creek Ecological Reserve — California CDFW
California CDFW Wildlife Area Maps · California
Public domain
Morro Hill, CA — USGS 7.5-minute topo (2021)
USGS Topo Maps (public domain) · California
Public domain
Margarita Peak, CA — USGS historical 15-minute topo (1941)
USGS Historical Topo Maps (public domain) · California
Public domain
Margarita Peak, CA — USGS historical 15-minute topo (1942)
USGS Historical Topo Maps (public domain) · California
Public domain
Margarita Peak, CA — USGS historical 15-minute topo (1944)
USGS Historical Topo Maps (public domain) · California
Public domain
Margarita Peak, CA — USGS historical 15-minute topo (1954)
USGS Historical Topo Maps (public domain) · California
Public domain
IFR Enroute Low Altitude Chart L-07 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-04 (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
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).