Holbrook Island
Island in Nez Perce County, Idaho · on the USGS Clarkston quadrangle
46.42155, -117.01710
Maps that show Holbrook Island
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Clarkston, WA-ID
USGS topo, 2023
Clarkston, WA — USGS historical 15-minute topo (1945)
USGS Historical Topo Maps (public domain) · Washington
Clarkston, WA — USGS historical 15-minute topo (1948)
USGS Historical Topo Maps (public domain) · Washington
Index Over-Snow Vehicle Use Map — Nez Perce-Clearwater National Forests
Forest Service Maps (public domain) · Nez Perce-Clearwater National Forests
IFR Enroute Low Altitude Chart L-13 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
IFR Enroute High Altitude Chart H-01 (U.S.) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
IFR Enroute Low Altitude Chart L-01 (Alaska) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Name, class, county and location: USGS Geographic Names Information System (public domain).