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1989 Map of Avon

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

USGS Topo · Published 1989

About this map

The settlement of Avon serves as a focal point in this 1980s landscape, situated where the Little Blackfoot River meets Trout Creek. This area of Powell County is defined by a dense network of mountain drainage systems and narrow valleys that supported both transportation and local industry. To the west of the town site, a local Cem and Gravel Pit indicate the community's established footprint, while several Pipelines cut through the terrain, signaling the energy infrastructure of the late 20th century.

Rising to the south and east, the borders of the Helena National Forest encompass a complex system of waterways, including Spotted Dog Creek and Snowshoe Creek. The map details a transition from the lower river valley to the protected timberlands, where small tributaries like Warm Spring Creek and the South Fork Spotted Dog Creek carve through the high country. These features provide a clear look at the topographic constraints that shaped development in this portion of Montana.