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2014 Map of Arsenic Mountain

Name: 2014 Topographic Map of Arsenic Mountain
Creator: U.S. Geological Survey
Published: 2014
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2014

About this map

Arsenic Mtn stands as a central peak within the Lewis & Clark National Forest, anchoring a landscape defined by the confluence of the North Fork Sun River and South Fork Sun River. The southern portion of this 2014 survey reveals the hydrological engineering of the Gibson Reservoir, which borders the Reclamation Flats. The terrain is marked by distinctive geological features such as Sheep Reef, Sun Butte, and the riverbed formation known as The Bars.

Drainage patterns are intricate, with Arsenic Cr and Whiskey Cr feeding the larger river systems. Local place names like Mortimer Gulch, Big George Gulch, and Blacktail Gulch suggest a history of early exploration or family homesteads. The inclusion of Medicine Springs near the reservoir indicates a site of long-standing local interest. This map provides a clear record of the boundary where Lewis and Clark County meets Teton County.