Mother Grundy Peak
Summit in San Diego County, California · on the USGS Barrett Lake quadrangle
32.65033, -116.74108
Maps that show Mother Grundy Peak
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Barrett Lake, CA — USGS 7.5-minute topo (2021)
USGS Topo Maps (public domain) · California
Public domain
Potrero, CA — USGS historical 15-minute topo (1944)
USGS Historical Topo Maps (public domain) · California
Public domain
Potrero, CA — USGS historical 15-minute topo (1960)
USGS Historical Topo Maps (public domain) · California
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 High Altitude Chart H-04 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
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Name, class, county and location: USGS Geographic Names Information System (public domain).