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1986 Map of Split Rock Junction

Name: 1986 Topographic Map of Split Rock Junction
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

Sun River water management defines this portion of the Montana high plains, where the Willow Creek Reservoir collects the flows of Willow Creek and the North Fork Willow Creek. This 1980s survey captures a landscape structured by irrigation and transport, including several Canals and water control structures like the Diversion Dam and various headgates. The geography is punctuated by distinctive terrain features such as Carey Butte, Sandy Butte, and the expansive Alkali Flats.

Tracing the path of history, an Old RR Grade runs through the southern portion of the sheet near Split Rock Junction, hinting at the changing transportation networks of the late 20th century. Local landmarks such as Kirkaldie Flats and the Sewage Disposal Pond near the Teton and Lewis and Clark County line provide specific points of interest for genealogists and local historians studying the rural development of this region.