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2020 Map of Colockum Pass

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

USGS Topo · Published 2020

About this map

Colockum Pass sits at the heart of this high-elevation landscape in Kittitas County, where the topography is defined by the dramatic descent from Naneum Ridge and Jumpoff Ridge into deep drainages. Much of the northeast corner is protected within the Wenatchee National Forest, a terrain of steep slopes and seasonal watercourses. The drainage patterns are intricate, with headwaters for systems like Big Stemilt Cr and the many forks of Tarpiscan Cr carving through the plateau.

Remote access is provided by a network of high-country roads, including Jumpoff Ridge Rd and Naneum Ridge Rd, which trace the spines of the land. To the south, the terrain opens into Cooke Canyon and follows the winding path of Cooke Cr. The presence of Ryegrass Ranches Rd in the lower reaches suggests the transition from wild forest lands to the grazing and ranching economy characteristic of this part of central Washington.