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1984 Map of Hermiston

Name: 1984 Topographic Map of Hermiston
Creator: U.S. Geological Survey
Published: 1984
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1984

About this map

The Columbia River corridor dominates this mid-1980s landscape, illustrating a complex network of hydroelectric power, military logistics, and irrigation-based agriculture. The presence of the McNary Dam and its adjacent Powerhouse transformed the river into Lake Wallula and Umatilla Lake, creating specialized environments like the Umatilla Wildlife Refuge. Significant land is dedicated to the Umatilla Ordnance Depot, a massive facility defined by its grid of bunkers and the specialized Ordnance Airstrip.

Logistics and transport define the settlement patterns, with the Union Pacific Railroad and Interstate 80N linking hubs like Hermiston and Hinkle. Away from the river, the terrain rises into high ridges such as Paterson Ridge and Canoe Ridge, dissected by deep drainage systems like Juniper Canyon and Sixmile Canyon. Smaller outposts like Pine City and Cecil sit along southern waterways, providing a look at the more rural reaches of Umatilla and Morrow counties.