
Coburg sits at the foot of the Coburg Hills, marking a transition between the valley floor and the rising uplands of the t16s r3w township. The landscape is defined by its complex drainage systems, where the Willamette River and various sloughs like Mill Slough and Gartwright Slough intersect with numerous creeks, including Muddy Cr and Camas Cr. These watercourses likely influenced early agricultural patterns and settlement siting, creating a fertile but potentially flood-prone environment.
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1909 · Harrisburg
USGS Topo · 1:31,680
1909 · Rowland
USGS Topo · 1:31,680
1910 · Eugene
USGS Topo · 1:62,500
1912 · Halsey
USGS Topo · 1:62,500
1921 · Brownsville
USGS Topo · 1:62,500
1940 · Eugene
USGS Topo · 1:62,500
1941 · Halsey
USGS Topo · 1:62,500
1946 · Eugene
USGS Topo · 1:62,500
1949 · Eugene
USGS Topo · 1:62,500
1950 · Marcola
USGS Topo · 1:62,500