
Saint Helens and its industrial harbor occupy a strategic bend in the Columbia River where the Multnomah Channel diverges. This 2017 survey details a landscape defined by the intersection of Oregon’s timber and river history with the tidal complexity of the islands. To the south, Scappoose serves as a gateway to the region, featuring the Scappoose Industrial Airpark. The river environment is a labyrinth of sloughs and lakes, dominated by the expansive Bachelor Island and the northern tip of Sauvie Island.
182 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
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