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2004 Map of Rainbow Peak

Name: 2004 Topographic Map of Rainbow Peak
Creator: U.S. Geological Survey
Published: 2007
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2007

About this map

Mining history and high-altitude wilderness define this mountainous region of Valley County at the start of the 21st century. The map centers on the transition between the Payette National Forest and the Boise National Forest, with a significant portion of the landscape protected within the Frank Church River of No Return Wilderness. The legacy of the Thunder Mountain gold rush is evident in the cluster of industrial labels around Thunder Mtn, including the Dewey Mine and Sunnyside Mine.

Access to these remote extraction sites is traced along the Monumental Road, which follows the drainage of Monumental Creek past the Twentieth Century Mill (Site) and a small mountain Cem. The terrain is characterized by dramatic elevations like Rainbow Peak and Lookout Mountain, while the presence of Roosevelt Lake—formed by a massive landslide decades earlier—serves as a reminder of the dynamic geological forces in this backcountry.