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historical topo map of Valley County, MT in 1918

1918 Map of Porcupine Valley

USGS Topo · Published 1949

This historical map portrays the area of Porcupine Valley in 1918, primarily covering Valley County. Featuring a scale of 1:62500, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Porcupine Valley region at the time. Published in 1949, it is one of 2 known editions of this map due to revisions or reprints.

Map Details

Date Portrayed1918
Date Published1949
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.9 x 20.7 inches

Editions of this 1918 Porcupine Valley Map

Historical Maps of Valley County Through Time

105 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain