
Dunnigan and Hershey serve as the primary hubs of activity along the Southern Pacific (Woodland Line) in this early 20th-century survey. The landscape is defined by the agricultural and drainage patterns of the Colusa Basin, where the Colusa Co Yolo Co Boundary Line marks a transition across fertile Sacramento Valley plains. To the east, the complex hydrology of Sycamore Slough and Tule Slough reveals the natural lowlands of the basin before extensive modern water management. The mapping of Buckeye Creek and Dunnigan Creek flowing toward the rail line illustrates the geographic relationship between local water sources and the development of these small railroad towns. This survey, conducted by geographers like E.M. Douglas, captures the region's layout just as the railroad-driven economy was solidifying the importance of these roadside shipping points.
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This is the sole edition of this map. No revisions or reprints were ever made.
1888 · Marysville
USGS Topo · 1:125,000
1891 · Marysville
USGS Topo · 1:125,000
1894 · Marysville
USGS Topo · 1:125,000
1895 · Marysville
USGS Topo · 1:125,000
1905 · Harrington
USGS Topo · 1:24,000
1907 · Dunnigan
USGS Topo · 1:62,500
1907 · Colusa
USGS Topo · 1:62,500
1911 · Grimes
USGS Topo · 1:31,680
1912 · Tisdale Weir
USGS Topo · 1:31,680
1915 · Ronda
USGS Topo · 1:31,680