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1962 Map of Blalock Island

Name: 1962 Topographic Map of Blalock Island
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

Columbia River geography defines this 1962 landscape along the Washington and Oregon border, where the river splits into the North Channel and South Channel to encompass the substantial Blalock Island. The terrain is marked by the prominent elevations of Paterson Ridge and Canoe Ridge, which parallel the water. Transportation and infrastructure are centered on the river's edge, notably featuring the Portland Seattle and Spokane rail line and a prominent Pipeline cutting across the desert upland.

Glade Creek and its tributary East Branch Glade Creek carve deep winding paths through the basalt plateaus before meeting the river. Small-scale industrial traces like a Gravel Pit and a Water Tank appear near the rail corridor, providing localized evidence of early 1960s land use. The boundary between Benton Co and Morrow Co follows the center of the river channel, marking the political divide in this arid river valley.