Porter Ridge
Ridge in Clatsop County, Oregon · on the USGS Nicolai Mountain quadrangle
46.08027, -123.39335
Maps that show Porter Ridge
Get them in the map app
Nicolai Mountain, OR — USGS 7.5-minute topo (2023)
USGS Topo Maps (public domain) · Oregon
Public domain
Cathlamet, OR — USGS historical 15-minute topo (1941)
USGS Historical Topo Maps (public domain) · Oregon
Public domain
Cathlamet, OR — USGS historical 15-minute topo (1953)
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-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).