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1969 Map of Threemile Hill, 1973 Print
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1969 Map of Threemile Hill

USGS Topo · Published 1973

About this map

Jordan Creek defines the lower drainage of this high-desert landscape in Malheur County, where the 1969 field survey reveals a complex system of water management. The irrigation infrastructure is anchored by the Arock Diversion Dam, which feeds the North Side Canal and South Side Canal to support agriculture in an otherwise arid environment characterized by extensive lava fields and basaltic formations like Merrill Rim.

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Map Details

Date Portrayed1969
Date Published1973
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1969 Threemile Hill Map

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

Historical Maps of Malheur County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain