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2020 Map of Cow Lakes

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

USGS Topo · Published 2020

About this map

Jordan Craters dominate the western landscape of this Malheur County high desert terrain, where volcanic activity has shaped a distinct topography of lava flows and cinder cones. The central hydrologic system revolves around Cow Lakes, which are connected by a restrictive passage known as The Narrows. This area is characterized by a complex network of seasonal drainages and springs, such as Hawkins Spring and Meadow Spring, which support the surrounding Azcuenaga Meadows.

Human intervention in this arid environment is evident through a series of water management features, including Oliver Reservoir, Boulder Reservoir, and Angus Reservoir. The road network, including Lodge Ranch Rd and Lower Cow Creek Rd, provides access to remote ranching outposts and grazing lands. Tributaries such as Schnable Cr and Mahogany Cr feed into the larger basin, illustrating the vital role of water in the development and navigation of this isolated Oregon borderland.