1961 Map of Coburn Mountain

About this map

The Dearborn River winds through this landscape on the border of Lewis and Clark and Cascade counties, carving a path between the prominent peaks of Elephant Mountain and Coburn Mountain. This 1961 field-checked survey reveals a quiet ranching and rural district defined by the presence of the Dearborn Ranch and the local Sevenmile Sch. The placement of the Dearborn Cem and an unnamed Mine near the river suggests a long-standing human connection to this terrain, even as large-scale infrastructure like the Pipeline and Flat Creek Road began to traverse the area.