Tags
- American Fur Company
- Andrew Henry
- Arapaho
- Arikara
- Beaver
- Beaver hat
- Bertrand
- Big Belt Mountains
- Big Bend
- Bighorn Mountains
- Bighorn River
- Blackfoot Confederacy
- Chouteau
- Columbia River
- Comanche
- Continental divide
- Corps of Discovery
- Crow Nation
- Flathead Lake
- Fort Atkinson
- Fort Benton, Montana
- Fort Mandan
- Fort Raymond
- Fort Recovery
- Fur trade
- George Drouillard
- Great Falls
- Great Plains
- Great Platte River Road
- Great Sioux Nation
- Great Sioux War of 1876
- Green River
- Hidatsa
- Ho-Chunk
- Hudson's Bay Company
- Idaho
- Independence, Missouri
- Indigenous peoples of the Americas
- International Standard Book Number
- Iowa people
- James Wilkinson
- Jefferson City, Missouri
- John Colter
- John Jacob Astor
- Joint-stock company
- Joseph LaFlesche
- JSTOR
- Kiowa
- Lakota people
- Lewis and Clark
- Lewis and Clark Expedition
- Louisiana Purchase
- Louisiana Territory
- Madison River
- Mandan
- Manuel Lisa
- Meriwether Lewis
- Meskwaki
- Missouria
- Missouri River
- Missouri River Valley
- Missouri Territory
- Montana
- Mountain Men
- Northern Cheyenne Indian Reservation
- North Omaha, Nebraska
- North West Company
- Omaha people
- Oregon Trail
- Osage Nation
- Otoe
- Pacific Fur Company
- Pawnee people
- Piegan Blackfeet
- Pierre Menard
- Platte River
- Ponca
- Prairie
- Rocky Mountain Fur Company
- Rocky Mountains
- Sacagawea
- Sac and Fox Nation of Missouri in Kansas and Nebraska
- Salt Lake Valley
- Sauk people
- Sioux
- Snake River
- South Pass
- St. Charles, Missouri
- St. Louis
- Thomas Jefferson
- Toussaint Charbonneau
- Treaty of Fort Laramie
- United States Army Corps of Engineers
- United States Bureau of Reclamation
- Upper Missouri River Breaks National Monument
- War of 1812
- Washington, D.C.
- White River
- Wikisource
- William Clark
- Wind River Range
- Yellowstone River