Loading map...

2020 Map of Isham Creek

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

USGS Topo · Published 2020

About this map

The John Day River flows through this portion of Grant County, cutting a path through the southern reaches of the Malheur National Forest. The landscape is defined by an intricate network of drainages and springs, with Eureka Spring, Bumblebee Spring, and Horse Spring providing vital water sources in this high-elevation terrain. Named gulches and draws, such as Eureka Gulch, Cline Draw, and Winegar Gulch, mark the erosion patterns across the forest floor, suggesting the historical movements of early prospectors or ranchers who navigated these drainages.

Transportation in the early 21st century follows long-established corridors like N River Rd and the Prairie Cy South Side of River Rd. These routes, along with Reynolds Creek Rd, parallel the primary waterways including Reynolds Cr and Deardorff Cr. The map captures the specialized infrastructure of timber management and forest access, specifically the Natl Forest Develop Road 13 Rd, while the township and range lines provide a rigid grid over the complex physical geography of the Blue Mountains region.