Where did meriwether Lewis and William clark travel?

Meriwether Lewis and William Clark led an expedition known as the Corps of Discovery from 1804 to 1806, traveling across the western part of the United States. They journeyed from St. Louis, Missouri, up the Missouri River, through the Rocky Mountains, and eventually reached the Pacific Ocean at the mouth of the Columbia River in present-day Oregon. Their exploration provided valuable insights into the geography, biology, and Native American cultures of the region.