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1886 Map of Fort Logan

Name: 1886 Topographic Map of Fort Logan
Creator: U.S. Geological Survey
Published: 1914
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1914

About this map

The Missouri River corridor serves as the central artery for this reconnaissance survey, tracing the rugged contact point between the Big Belt Mountains and the Elkhorn Mountains. The map documents a territory defined by mining and military presence, notably featuring Ft Logan in the northeast and the legendary Confederate Gulch, which led to the establishment of Diamond City. These gold-rush era settlements represent a pivotal moment in Montana's development before the turn of the century.

Further south, the valley opens toward Townsend and Radersburg, illustrating an early network of stage and supply points such as Spokane House and Canon Ferry. The detailed drainage patterns, including Six Mile Creek and Deep Creek, provide essential context for researchers tracing early territorial land claims and water rights. This landscape highlights the transition from isolated mountain mining camps to established valley agriculture and trade hubs.