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2020 Map of Banner Summit

Name: 2020 Topographic Map of Banner Summit
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

The high alpine divide of Banner Summit serves as a critical geographic marker in this modern survey of the central Idaho mountains. The landscape is defined by the boundary between the Challis National Forest and the Boise National Forest, where steep ridgelines like Copper Mtn separate numerous high-elevation basins. These basins are dotted with several small water bodies, including Newman Lake, Elizabeth Lake, and Marten Lake, which feed the complex network of headwater streams such as Cape Horn Cr and Newman Cr.

Historic transit corridors are represented by the Stanley / Landmark Trail and the Cape Horn Trail, reflecting long-established routes through this high-country terrain. Modern access is primarily facilitated by Idaho City-Stanley SH21, which winds through the mountain passes alongside more specialized routes like Bear Valley Rd and the Bench Creek - Stanley Creek trail. The presence of several winter-specific designations, such as Rd #1 (Snow), indicates the seasonal nature of travel in this high-altitude wilderness.