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Shellrock Mountain (Columbia Gorge)

From Oregon Hikers Field Guide

Shellrock Mountain from Dog Mountain (bobcat)
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Like Wind Mountain across the river, Shellrock Mountain is a microdioritic intrusion into the Columbia River Basalts. In fact, the two may be part of the same structure carved in two by the Columbia River. Shellrock's west, east, and north slopes are almost entirely scree. A geologic monitoring station, which calibrated rock slides on Wind Mountain, could be reached by a now-abandoned trail from the highway. Settlers used the term 'shellrock' to describe slopes of scree. The unstable northern scree slope has always been an obstacle to transportation routes through the Gorge.

Portions of the 1860s The Dalles and Sandy Wagon Road can be seen about 100 feet above the freeway on the scree slopes. Other sections of the wagon road have completely vanished in scree slides. A patchwork of forest on Shellrock Mountain was burned in the 2017 Eagle Creek Fire.

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Oregon Hikers Field Guide is built as a collaborative effort by its user community. While we make every effort to fact-check, information found here should be considered anecdotal. You should cross-check against other references before planning a hike. Trail routing and conditions are subject to change. Please contact us if you notice errors on this page.

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