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Loading map...1998 Map of Mossyrock
USGS Topo · Published 2003About this map
Mossyrock and the nearby settlement of Ajlune anchor this landscape, situated at the critical junction where the Cowlitz River was harnessed for hydroelectric power. The map illustrates the massive scale of the Riffe Lake and Mayfield Lake reservoirs, separated by the Mossyrock Dam Spillway. This engineering feat fundamentally altered the local geography, flooding the valley floor while leaving small upland communities like Harmony and Bremer along the Tilton River.
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Map Details
Date Portrayed1998
Date Published2003
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 26.9 inches
Editions of this 1998 Mossyrock Map
This is the sole edition of this map. No revisions or reprints were ever made.
Historical Maps of Mossyrock Through Time
7 maps found
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Source Details
SourceU.S. Geological Survey
CopyrightPublic Domain