
The Columbia River and its intricate network of sloughs and islands dominate this mid-century landscape along the Oregon-Washington border. At St Helens, the river geography transitions from the open waters of Scappoose Bay to a complex system of navigation ranges, including the St Helens Range and Warrior Rock Range. On the Washington side, Bachelor Island is a mosaic of seasonal lakes such as Canvasback Lake and Widgeon Lake, separated from the mainland by the Bachelor Island Slough.
90 named features on this map. Tap any name to fly to it.
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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