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2020 Map of Ophir Creek

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

USGS Topo · Published 2020

About this map

Avon serves as the primary settlement hub at the southern edge of this landscape, situated within the fertile Avon Valley. The terrain rises sharply to the north and east, marked by significant elevations like Black Mtn and the prominent Illinois Ridge. Waterways define the local geography, with Ophir Cr and its tributaries such as N Fork Ophir Cr carving through the gulches of the Helena National Forest.

Genealogists and local historians will find the Blackfoot Cem positioned near Illinois Gulch, a site connected to the region's earlier mining and ranching history via Blackfoot City Rd. The northeastern corner of the map is traversed by the Continental Divide National Scenic Trail, following the high ridgeline that forms the boundary between Lewis and Clark and Powell counties. This area is characterized by a network of drainage systems including McKay Cr, Threemile Cr, and Carpenter Cr.