
Gifford Pinchot National Forest dominates this mountain landscape, which was profoundly altered by the 1980 eruption of Mount St. Helens just west of this quadrangle. The map captures the industrial and recreational infrastructure of the early 1980s, centered around the Swift Reservoir and the Lewis River. The presence of several Borrow Pit and Gravel Pit locations, along with numerous 4wd tracks, reflects the ongoing land management and restoration efforts in the volcanic monument's vicinity.
27 named features on this map. Tap any name to fly to it.
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2 editions found
1919 · Mount St Helens
USGS Topo · 1:125,000
1926 · Steamboat Mtn
USGS Topo · 1:125,000
1926 · Hood River
USGS Topo · 1:125,000
1929 · Hood River
USGS Topo · 1:125,000
1931 · Steamboat Mtn
USGS Topo · 1:125,000
1940 · Lookout Mtn
USGS Topo · 1:62,500
1948 · Vancouver
USGS Topo · 1:250,000
1950 · Vancouver
USGS Topo · 1:250,000
1950 · Vancouver
USGS Topo · 1:250,000
1950 · Yakima
USGS Topo · 1:250,000