Oregon historical topo maps: P
14 historical topo maps of Oregon whose names start with P. These are the USGS 15-minute (1:62,500) quadrangles from the mid-1900s: old roads, mines, homesteads, rail lines and place names that newer maps leave off.
14 historical topo maps of Oregon whose names start with P. These are the USGS 15-minute (1:62,500) quadrangles from the mid-1900s: old roads, mines, homesteads, rail lines and place names that newer maps leave off.