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1991 Map of Porphyry Peak

1991 Map of Porphyry Peak

USGS Topo · Published 1991

This historical map portrays the area of Porphyry Peak in 1991, primarily covering Custer 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 Porphyry Peak region at the time. Published in 1991, it is the sole known edition of this map.

Map Details

Date Portrayed1991
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions22 x 26.8 inches

Editions of this 1991 Porphyry Peak Map

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

Historical Maps of Custer County Through Time

104 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain