
The North Santiam River and South Santiam River define the agricultural landscape of the Willamette Valley in this modern survey. The map details the complex hydraulic history of the region, from the natural flow of Thomas Creek and Crabtree Creek to the engineered systems of the Sidney Ditch and Jefferson Ditch. These waterways support long-standing communities like Jefferson and Marion, as well as the open reaches of Independence Prairie.
97 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.