How did the expedition of the Corps of Discovery (Lewis and Clark's expedition) impact the growth and expansion of the
United States?
(8 sentences minimum)

The Lewis and Clark Expedition was the first occasion for United States citizens to travel so far by river and land into the West, but it certainly wasn’t the last. Upon their return they provided detailed maps, reports about natural resources, and details about the indigenous populations they encountered. That information made it easier for others to follow and lay their claims to the abundance of resources. In fact, just four years after the expedition returned, traders were already moving deep into the Louisiana Territory to exchange goods with Plains tribes. By 1822 one man alone - William H. Ashley - employed at least 100 trappers in the Rocky Mountains. To some, Lewis and Clark’s expedition ushered in a new and exciting time characterized by economic growth and new possibilities. To others, it would come to signify loss - the loss of land, the loss of cultural ways, and so much more

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