historical topo map of Lewis and Clark County, MT in 1970

1970 Map of Nilan Reservoir

USGS Topo · Published 1973

This historical map portrays the area of Nilan Reservoir in 1970, primarily covering Lewis and Clark 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 Nilan Reservoir region at the time. Published in 1973, it is the sole known edition of this map.

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Map Details

Date Portrayed1970
Date Published1973
PublisherU.S. Geological Survey
Map TypeTopographic
Physical Dimensions22 x 26.8 inches

Editions of this 1970 Nilan Reservoir Map

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

Historical Maps of Lewis and Clark County Through Time

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CopyrightPublic Domain