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2017 Map of Rattlesnake Mountain

Name: 2017 Topographic Map of Rattlesnake Mountain
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Rattlesnake Mtn and Baldy Mtn define the prominent relief of this terrain in Lewis and Clark County. This 2017 survey documents the transition from high ridgelines and deep drainages like McLeod Gulch and Rattlesnake Gulch into the broader plains. The landscape is carved by a network of seasonal and perennial waters, including Clark Cr, Willow Cr, and Ming Cr, which feed through the complex series of gulches that characterize the area's geology.

Residential development and transit infrastructure are concentrated in the southern and eastern sectors, where the Helena Valley Northwest and Helena Valley Northeast meet. Modern road networks, such as N Montana Ave, Toehead Rd, and Applegate Dr, provide access to these emerging communities. To the west, the map preserves the more isolated character of Copper Butte and Diamond Spring Gulch, illustrating the contrast between the expanding valley floor and the enduring mountain wilderness.