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2020 Map of Mortarstone Bluff

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

USGS Topo · Published 2020

About this map

The Missouri River winds through this northern Montana landscape, serving as the natural boundary between Roosevelt Co and Richland Co. The terrain is defined by a dense network of coulees and high points, including the prominent Mortarstone Bluff and the isolated Haystack Butte. These landforms dictate the local geography, with drainages like Eagles Nest Coulee, Coalmine Coulee, and Schoolhouse Coulee carving deep into the earth.

Remote roads such as Bia Rte 1 and Bia Rte 4 traverse the northern section, while Co RD 146 crosses the southern reaches. The presence of Fisher Cem along W Charlie Cr provides a focal point for genealogical interest in this sparsely populated region. This area, just south of the Brockton District, reveals a landscape where water and topography have historically shaped settlement patterns and transit routes.