Loading map...

1958 Map of Keystone

Name: 1958 Topographic Map of Keystone
Creator: U.S. Geological Survey
Published: 1976
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1976

About this map

Keystone serves as the focal point for this 1958 survey, updated in the mid-1970s to reflect the emergence of the Keystone Ski Area on the north-facing slopes of Keystone Mountain. The landscape is a complex network of high-altitude drainages, including the Snake River and the Swan River, which are punctuated by the massive engineering of the Roberts Diversion Tunnel.

Evidence of the region's mining heritage is scattered throughout the Arapaho National Forest, with numerous named operations like the Saints John Mine and the Ma Belle Mine situated near the high peaks of Independence Mountain and Bear Mountain. Smaller settlements and historic sites such as Saints John and Swandyke are visible along the steep gulches, while landmarks like Brewery Hill and Porcupine Peak define the local topography. The map details a transition from traditional extraction to modern recreation, all while the Jeep Trail networks provide access to remote mountain elevations.