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
Editions of this 1998 Mossyrock Map
This is the sole edition of this map. No revisions or reprints were ever made.
Other maps of this area
1916 · Chehalis
USGS Topo · 1:125,000
1919 · Mount St Helens
USGS Topo · 1:125,000
1937 · Eatonville
USGS Topo · 1:125,000
1942 · Toutle
USGS Topo · 1:62,500
1943 · Willapa
USGS Topo · 1:62,500
1953 · Hoquiam
USGS Topo · 1:250,000
1953 · Toutle
USGS Topo · 1:62,500
1953 · Elk Rock
USGS Topo · 1:62,500
1954 · Onalaska
USGS Topo · 1:62,500
1957 · Hoquiam
USGS Topo · 1:250,000