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historical topo map of O'Brien County, IA in 1970

1970 Map of Hartley SW

USGS Topo · Published 1972

This historical map portrays the area of Hartley SW in 1970, primarily covering O'Brien County as well as portions of Clay County. Featuring a scale of 1:24000, this map provides a highly detailed snapshot of the terrain, roads, buildings, counties, and historical landmarks in the Hartley SW region at the time. Published in 1972, it is the sole known edition of this map.

Map Details

Date Portrayed1970
Date Published1972
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.9 inches

Editions of this 1970 Hartley SW Map

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

Historical Maps of O'Brien County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain