
The Willamette River meanders along the eastern edge of this landscape, defining the fertile lowlands of the American Bottom and providing a natural border between Polk and Marion counties. The neighboring towns of Monmouth and Independence serve as the primary hubs, where the presence of the College of Education and the Southern Pacific rail line highlights a regional focus on academia and transport.
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2 editions found
1912 · Jefferson
USGS Topo · 1:31,680
1913 · Wells
USGS Topo · 1:31,680
1914 · Independence
USGS Topo · 1:31,680
1914 · Soap Creek
USGS Topo · 1:31,680
1915 · Rickreall
USGS Topo · 1:31,680
1915 · Eola
USGS Topo · 1:31,680
1915 · Sidney
USGS Topo · 1:31,680
1916 · Albany
USGS Topo · 1:62,500
1917 · Salem
USGS Topo · 1:62,500
1921 · Corvallis
USGS Topo · 1:62,500