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1964 Map of Devil Mountain

Name: 1964 Topographic Map of Devil Mountain
Creator: U.S. Geological Survey
Published: 1983
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1983

About this map

Tres Piedras Ranch sits along the First Fork Piedra River, marking a rare point of private habitation in this portion of the San Juan National Forest. The landscape is defined by the steep drainage systems of Devil Creek and Horse Creek, which flow through deep incisions like Box Canyon and Second Box Canyon. Higher elevations are dominated by the volcanic forms of Devil Mountain, topped by a Lookout Tower, and Horse Mountain.

Resource extraction and recreation are etched into the terrain through various prospects and established sites like the Piedra Hunter Campground and Mesa Spring Hunter Campground. A network of a pack trail and jeep trail provides access to remote springs, including Dudley Spring, Farrow Spring, and Mesa Spring No 1. The map reveals a high-country wilderness where early ranching and forestry infrastructure met the rugged topography of the San Juan Mountains.