Copco Lake (historical)
Reservoir in Siskiyou County, California · on the USGS Copco quadrangle
41.97947, -122.30373
Maps that show Copco Lake (historical)
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Copco, CA — USGS 7.5-minute topo (2022)
USGS Topo Maps (public domain) · California
Public domain
Copco, CA — USGS historical 15-minute topo (1954)
USGS Historical Topo Maps (public domain) · California
Public domain
Copco, CA — USGS historical 15-minute topo (1962)
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-11 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
IFR Enroute Low Altitude Chart L-13 (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
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Name, class, county and location: USGS Geographic Names Information System (public domain).