Loading map...

1967 Map of Ryan Peak

Name: 1967 Topographic Map of Ryan Peak
Creator: U.S. Geological Survey
Published: 1975
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1975

About this map

Ryan Peak and the high ridges of the Boulder Mountains define this high-altitude landscape on the border of Custer and Blaine counties. Surveyed in the mid-1960s, the map reveals a remote wilderness accessible primarily by a network of Pack Trails and Jeep Trails. The drainage patterns are significant, showing the headwaters of major systems including the East Fork Salmon River and the North Fork Big Lost River.

Signs of early resource extraction and federal management are evident at the Bowery Guard Sta and several unnamed Mines tucked into canyons like Lost Mine Canyon. Geothermal activity is noted at a Spring (Hot) near the confluence of West Pass Creek and the Salmon River. The high alpine environment is further emphasized by the presence of North Fork Lake and prominent summits such as Glassford Peak and Kent Peak.