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Loading map...1993 Map of Umatilla
USGS Topo · Published 1993About this map
McNary Lock and Dam serves as the focal point of the Columbia River corridor, marking the border between Washington and Oregon where Lake Wallula meets Lake Umatilla. The area is defined by a sophisticated hydraulic landscape, including the Powerhouse, a Fish Viewing Station, and an extensive network of irrigation infrastructure such as the Three Mile Falls Diversion Works and various named ditches and lateral canals.
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Map Details
Date Portrayed1993
Date Published1993
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches
Editions of this 1993 Umatilla Map
This is the sole edition of this map. No revisions or reprints were ever made.
Historical Maps of Umatilla Through Time
8 maps found
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Source Details
SourceU.S. Geological Survey
CopyrightPublic Domain