Learning from the Source: Primary Source Trail of Western Migration

Learning from the Source: Primary Source Trail of Western Migration

Background The “Corps of Discovery” expedition led by Meriwether Lewis and William Clark in the years 1804-1806 was instrumental in opening up western North America to settlement. After this defining exploration, fur companies further investigated  westward routes. Financed by John J. Astor’s Pacific Fur Company, an 1812 expedition led by Robert Stuart began on the west coast…