Fourth Plains
Flat in Clark County, Washington · on the USGS Orchards quadrangle
45.69706, -122.52982
Maps that show Fourth Plains
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Orchards, WA — USGS 7.5-minute topo (2023)
USGS Topo Maps (public domain) · Washington
Public domain
Portland, OR — USGS historical 15-minute topo (1897)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Portland, OR — USGS historical 15-minute topo (1905)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Portland, OR — USGS historical 15-minute topo (1940)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Portland, OR — USGS historical 15-minute topo (1961)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
IFR Enroute Low Altitude Chart L-01 (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
IFR Enroute Low Altitude Chart L-01 (Alaska) — FAA, 2026-10-29
FAA IFR Enroute Charts (public domain)
Public domain
Name, class, county and location: USGS Geographic Names Information System (public domain).