
Sauvie Island dominates this confluence of the Columbia River and the Multnomah Channel, where a complex network of sloughs and lakes defines the landscape. The interior of the island is marked by significant water bodies such as Sturgeon Lake, Little Sturgeon Lake, and Marquam Lake, connected by intricate waterways like Gilbert River and Mud Slough. Settlement patterns are concentrated along the western hills and the riverbanks, featuring communities like Burlington, Holbrook, and Folkenberg.
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1897 · Portland
USGS Topo · 1:62,500
1905 · Portland
USGS Topo · 1:62,500
1915 · Hillsboro
USGS Topo · 1:62,500
1918 · Hillsboro
USGS Topo · 1:62,500
1922 · St. Helens
USGS Topo · 1:62,500
1940 · Hillsboro
USGS Topo · 1:62,500
1940 · Portland
USGS Topo · 1:62,500
1940 · La Center
USGS Topo · 1:62,500
1941 · St Helens
USGS Topo · 1:62,500
1943 · St Helens
USGS Topo · 1:62,500