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historical topo map of Ravalli County, MT in 1991

1991 Map of Alta

USGS Topo · Published 1991

This historical map portrays the area of Alta in 1991, primarily covering Ravalli County as well as portions of Idaho. Featuring a scale of 1:24000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Alta region at the time. Published in 1991, it is one of 2 known editions of this map due to revisions or reprints.

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Map Details

Date Portrayed1991
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.9 inches

Editions of this 1991 Alta Map

Historical Maps of Ravalli County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain