
Pacific University serves as a central landmark in this study of the northern Tualatin Valley, where the urban boundaries of Forest Grove, Cornelius, and Hillsboro meet the agricultural plains of Washington County. The landscape is a complex network of water management and rural heritage, evidenced by numerous irrigation and storage sites such as Rufener Reservoir, Van Loo Reservoir, and Herinckx Pond.
117 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.
1915 · Hillsboro
USGS Topo · 1:62,500
1916 · Tualatin
USGS Topo · 1:62,500
1918 · Hillsboro
USGS Topo · 1:62,500
1939 · Tualatin
USGS Topo · 1:62,500
1940 · Tualatin
USGS Topo · 1:62,500
1940 · Hillsboro
USGS Topo · 1:62,500
1941 · Gales Creek
USGS Topo · 1:62,500
1941 · Yamhill
USGS Topo · 1:62,500
1942 · Yamhill
USGS Topo · 1:62,500
1948 · Vancouver
USGS Topo · 1:250,000