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2011 Map of Porphyry Peak

Name: 2011 Topographic Map of Porphyry Peak
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Porphyry Peak and the high ridges of Custer County dominate this 2011 survey, where the drainage systems of the East Fork Big Lost River define the lower elevations. The landscape is characterized by its significant watercourse network, including the southward-flowing Butcher Creek and Little Boone Creek which join the main river fork near E Fork Rd.

Settlement evidence is concentrated in the river valley, most notably at the Rosenkranze Ranch located near the mouth of Dry Canyon. High-altitude landmarks such as Flat Top and the prominent Castle Rock provide navigational anchors for the surrounding drainages of Boone Creek and Garden Creek. The map documents a sparsely populated but geographically complex section of Idaho, showing the essential relationship between the few ranching outposts and the dependable water sources of the river canyon.