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1990 Map of Mormon Basin
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1990 Map of Mormon Basin

USGS Topo · Published 1990

About this map

Pedro Mountain dominates the central terrain of this survey along the border of Baker and Malheur counties. The landscape is defined by an extensive history of resource extraction, concentrated heavily within Mormon Basin. This area is marked by numerous Prospect and Prospects labels, alongside established operations like the Sunday Hill Mine, Overshot Group Mine, and Humboldt Mine. The settlement pattern suggests the fading of once-active mining camps, with Miller (Site) and Amelia (Site) noted as former locations near the basin floor. Drainage systems including Dixie Creek and its various forks, such as South Fork Dixie Creek, have carved deep gulches like French Gulch and Emigrant Gulch, which likely served as the primary routes for early miners and settlers moving through this high-elevation mining district.

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Map Details

Date Portrayed1990
Date Published1990
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24000
Physical Dimensions21.9 x 26.8 inches

Editions of this 1990 Mormon Basin Map

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

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain