
The Clackamas River serves as the industrial and logistical spine of this region during the early twentieth century, anchoring essential hydroelectric and timber operations. Power generation sites at Faraday and Upper Dam appear alongside the terminus of the Clackamas Southern RR, which connected these remote canyon reaches to the broader Willamette Valley. Further north, the Portland Waterworks and its Intake on the Bull Run River mark the vital source of municipal water for the growing city of Portland.
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5 editions found
1897 · Portland
USGS Topo · 1:62,500
1905 · Portland
USGS Topo · 1:62,500
1911 · Boring
USGS Topo · 1:48,000
1914 · Boring
USGS Topo · 1:62,500
1914 · Oregon City
USGS Topo · 1:62,500
1916 · Estacada
USGS Topo · 1:125,000
1918 · Troutdale
USGS Topo · 1:62,500
1924 · Mount Hood
USGS Topo · 1:125,000
1926 · Hood River
USGS Topo · 1:125,000
1927 · Mount Hood
USGS Topo · 1:125,000