
The Yamhill River winds through the heart of this valley, connecting the regional hub of McMinnville with the river-oriented settlements of Dayton and Lafayette. The landscape is defined by the fertile Dayton Prairie and the prominent Amity Hills, where early twentieth-century agriculture is supported by a dense network of local schools like Lone Star School and Fairview School. Near the eastern boundary, the Willamette River shapes the topography, creating the expansive Grand Island and the marshy Mission Bottom.
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4 editions found
1915 · Rickreall
USGS Topo · 1:31,680
1915 · Eola
USGS Topo · 1:31,680
1916 · Tualatin
USGS Topo · 1:62,500
1917 · Salem
USGS Topo · 1:62,500
1923 · Mount Angel
USGS Topo · 1:62,500
1924 · Mc Minnville
USGS Topo · 1:48,000
1925 · Stayton
USGS Topo · 1:62,500
1926 · Mc Minnville
USGS Topo · 1:62,500
1939 · Tualatin
USGS Topo · 1:62,500
1940 · McMinnville
USGS Topo · 1:62,500