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1990 Map of Poison Creek
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1990 Map of Poison Creek

USGS Topo · Published 1990

About this map

Mahogany Ridge and the volcanic landscape of Devils Garden define this high-desert region of Harney County as it appeared in the late 1980s. The drainage of the Silvies River anchors the southwest corner, where water management is evident at Fivemile Dam and the Arntz Reservoir. This 1990 provisional edition documents a network of family-held cattle operations, including the Thousand Spring Ranch, Hart Ranch, and Peterson Ranch, illustrating the persistent ranching economy of the Harney Valley outskirts. The map also records the Poison Creek (Site) and various spring-fed locations like Theimer Spring and Coal Pit Spring, which served as vital resources in a landscape carved by deep coulees such as Fenwick Canyon and Heifer Canyon.

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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 Poison Creek Map

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

Historical Maps of Harney County Through Time

409 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain