Lewis and Clark National Historical Park is located in the Pacific Northwest, primarily in Oregon and Washington. It commemorates the journey of Meriwether Lewis and William Clark, who explored the western United States from 1804 to 1806. The park includes several sites that highlight their expedition, including the reconstructed Fort Clatsop, where the explorers spent the winter of 1805-1806. The park offers various recreational activities such as hiking, birdwatching, and educational programs. Visitors can explore scenic trails, view historical exhibits, and learn about the natural and cultural history of the region. It serves as a reminder of the significance of exploration in American history.