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1964 Map of Trinity Mtn

Name: 1964 Topographic Map of Trinity Mtn
Creator: U.S. Geological Survey
Published: 1986
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1986

About this map

Trinity Mtn Lookout 9451 stands as the dominant peak in this high-elevation region of the Boise National Forest during the mid-1960s. The landscape is defined by a dense concentration of alpine waters, including Big Trinity Lake, Green Island Lake, and the series of Rainbow Lakes such as Middle Rainbow Lake and Little Rainbow Lake. A network of established paths, including several marked simply as Pack Trail, suggests a terrain that was primarily accessed by horse or on foot, connecting remote sites like Fiddle Lake and Heart Lake.

To the north and west, the terrain falls away into various drainages like Smith Creek Lake and Potter Lake. The inclusion of the Gold Spring Campground and other campgrounds near the lakeshores indicates the area's established role as a recreational destination within the national forest. Further south, the map details the rugged topography around Red Mtn 6975 and the headwaters of the East Fork Fall Creek, offering a precise look at the primitive infrastructure of the Boise backcountry before modern developments.