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historical topo map of Lyman County, SD in 1940

1940 Map of Iona

USGS Topo · Published 1958

This historical map portrays the area of Iona in 1940, primarily covering Lyman County as well as portions of Brule 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 Iona region at the time. Published in 1958, it is the sole known edition of this map.

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Map Details

Date Portrayed1940
Date Published1958
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62500
Physical Dimensions16.9 x 20.8 inches

Editions of this 1940 Iona Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Lyman County Through Time

27 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain