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2023 Map of Cornish Gulch

Name: 2023 Topographic Map of Cornish Gulch
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Rock Creek flows through a landscape defined by deep drainages and high peaks within the Deerlodge National Forest. This section of the Sapphire Mountains is characterized by a dense network of gulches, many bearing names that hint at the region's mineral history, such as Bi-Metallic Gulch, Cornish Gulch, and Eureka Gulch. These narrow canyons descend from prominent heights like Wright Rock and the West Fork Buttes, feeding into the primary valley floor.

Transportation through this high-altitude terrain is limited to primitive routes like Rock Creek Rd and several private ranch lanes, including W Rocking J Ranch Lane. The presence of the Squaw Rock Airstrip and specialized clearings like Wildcat Field and Bobcat Field suggest a remote landscape where air access and small mountain meadows serve as critical waypoints. The map also traces the headwaters of Upper Willow Creek and West Fork Rock Creek, marking the divide between major drainage basins in the Granite County backcountry.