Willamette Valley

United States   Oregon  

History
During the 19th century, the valley was largely inhabited by bands of the Kalapuya tribe of Native Americans. As many as 90% of the Kalapuya may have died as a result of an epidemic of "fever and ague" that hit the area between 1830 and 1833.[15]

The Hudson's Bay Company controlled the fur trade in the valley and the rest of Oregon Country in the 1820s and 1830s from its Columbia District headquarters at Fort Vancouver. Joint U.S.–British occupancy, in effect since the Treaty of 1818, ended in 1846 with the Oregon Treaty.

The Willamette Valley was connected to California's Central Valley by the Siskiyou Trail. The first European settlements in the valley were at Oregon City and Champoeg. The first institution of higher learning on the West Coast, today's Willamette University, was founded in the valley at Salem by Jason Lee, one of the many Oregon missionaries who settled in the valley.