1. Great Falls of the Missouri: An extensive series of waterfalls and cascades on the Missouri River, located in present-day Montana.
2. Maria's River (Missouri River): A tributary of the Missouri River that the expedition named in honor of Maria Wood, the infant daughter of one of the expedition members.
3. Shoshone Falls (Snake River): One of the highest waterfalls in North America, located in present-day Idaho.
4. Lewis River (Snake River): A tributary of the Snake River that the expedition named after Meriwether Lewis.
5. Clark Fork (Columbia River): A major tributary of the Columbia River that the expedition named after William Clark.
6. Lemhi Pass: A mountain pass in the Bitterroot Mountains that served as the route for the expedition to cross over from the Missouri River drainage to the Columbia River drainage.
7. Lolo Pass: Another mountain pass that the expedition used to cross the Bitterroot Mountains.
8. Great Plains: The vast, rolling prairie region that the expedition traversed before reaching the Rocky Mountains.
9. Columbia River: One of the major rivers of the Pacific Northwest, which the expedition followed downstream to the Pacific Ocean.
10. Cape Disappointment: The promontory at the mouth of the Columbia River, where the expedition reached the Pacific Ocean.
11. Fort Clatsop: The winter encampment site of the expedition near present-day Astoria, Oregon, where they spent the winter of 1805-1806.