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2020 Map of Owyhee

Name: 2020 Topographic Map of Owyhee
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Owyhee and Pleasant Valley anchor this high-desert landscape in Ada County, where the topography is defined by a network of seasonal drainages and irrigation infrastructure. The map reveals a transition between the open sagebrush plains and the more carved terrain of Isaacs Canyon near the northeastern corner. Water management is central to the area's geography, evidenced by the Blacks Creek Reservoir and the divergent paths of Indian Cr and N Indian Cr.

Settlement patterns follow the established grid of county roads, with Pleasant Valley Rd and Kuna Mora Rd providing the primary arteries through the townships. The drainage system of Tenmile Cr and Eightmile Cr cuts through the northern sections, while Bryans Run feeds into the central reservoir system. This map captures the area during a period of modern rural development, balancing ranching heritage with the expanding reach of regional infrastructure.