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2020 Map of Blowout Mountain

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

USGS Topo · Published 2020

About this map

The Pacific Crest National Scenic Trail winds through the high ridges of the Cascades on this 2020 map, marking the border between the Snoqualmie National Forest and the Wenatchee National Forest. This montane landscape is defined by its prominent volcanic and glacial landforms, including Snowshoe Butte, Bearpaw Butte, and the namesake Blowout Mountain. These peaks serve as the headwaters for several significant drainages, including the Green River, Cabin Cr, and Log Cr.

Historically significant transit routes across the crest are detailed here, such as Tacoma Pass, Green Pass, and Sheets Pass. The map also illustrates the modern infrastructure of the King and Kittitas County line and various forest development roads that provide access to this high-elevation backcountry. Near the northern boundary, a segment of the John Wayne trail appears, following an old railroad grade that once connected the coast to the interior.