Section 1
Explorers: The Lewis and Clark Expedition
Key Idea
After the Louisiana Purchase, the American West was a vast, unknown territory. President Thomas Jefferson hired Meriwether Lewis and William Clark to lead an expedition from 1804 to 1806. Their mission was to explore this new land and find a water route to the Pacific Ocean.
The team, known as the Corps of Discovery, faced harsh weather, difficult terrain, and the challenge of navigating unfamiliar lands. They relied on their crew, including an enslaved man named York, and their Shoshone guide, Sacajawea, whose knowledge and language skills were essential for their survival.