1966 Map of Cape Horn SE

About this map

Wanapum Lake dominates this mid-1960s landscape, representing a controlled stretch of the Columbia River at a normal pool elevation of 570 feet. The terrain is defined by dramatic vertical relief, where high plateaus like Perkins Bench and Babcock Bench overlook the deep incision of the river valley. The western shore is dissected by numerous drainages, including Quilomene Creek, Skookumchuck Creek, and Whiskey Dick Creek, which flow through steep features like Box Canyon. A historical Army Road and various 4WD tracks provide the primary access through this sparsely settled region. Evidence of local industry and geology appears in the form of a Borrow Pit and a Silica deposit on the eastern bank. The southern portion of the sheet includes a part of Ginkgo Petrified Forest State Park, while Scammon Landing marks a rare point of activity along the water's edge.