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1989 Map of Grayhorse Creek

Name: 1989 Topographic Map of Grayhorse Creek
Creator: U.S. Geological Survey
Published: 1989
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1989

About this map

Threemile Creek and Ambrose Creek define the drainage patterns of this Bitterroot Valley landscape during the late 1980s. The agricultural character of the western flats is anchored by the Lone Rock School and its adjacent Athletic Field, where the Bitterroot Irrigation District Canal winds through the terrain to support local ranching. This waterway represents a vital piece of local infrastructure, marked by a Siphon as it crosses the valley floor.

Moving eastward, the topography rises sharply into the Bitterroot National Forest and the Threemile State Wildlife Management Area. These upland areas are dotted with signs of resource exploration, including the Slocum Prospect and several unnamed Gravel Pit sites. From the heights of Reed Butte to the drainages of Grayhorse Creek and Slocum Creek, the map provides a clear look at the intersection of managed forest lands and rural Montana homesteads.