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2020 Map of Duncan

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

USGS Topo · Published 2020

About this map

The small settlement of Duncan and the entry point at Smith Gate serve as the primary human markers in this deeply incised canyon landscape within the Umatilla National Forest. The geography is defined by a series of prominent ridges, including Gibbon Ridge and Horse Heaven Ridge, which divide the watershed of Meacham Creek and its many tributaries. The area's complex drainage system is evident through features like Dutchman Canyon and the winding course of the North Fork Meacham Creek.

High points such as Wilbur Mountain and Black Canyon Butte provide significant vertical relief in this part of Umatilla County. The presence of several remote water sources, including Little Isquuliktpe Spring and Buck Spring, suggests the long-standing importance of this terrain for both wildlife and seasonal forestry operations. The map provides a detailed view of the rugged corridor where Meacham Creek carves through the basalt-heavy highlands of northeastern Oregon.