Lewis and Clark Expedition

History of the Rocky Mountains Louisiana Purchase Explorers of the United States Fur trade History of United States expansionism History of the American West History of the Pacific Northwest Pre-statehood history of South Dakota Pre-statehood history of Illinois Pre-statehood history of Washington (state) 1800s in the United States Pre-statehood history of Idaho Pre-statehood history of Oregon North American expeditions 1805 in the United States Pre-statehood history of Nebraska 1804 in the United States 1803 in the United States Columbia River Gorge Pre-statehood history of Montana 1806 in the United States Pre-statehood history of North Dakota Military expeditions of the United States Expeditions from the United States Missouri River Pre-statehood history of Missouri History of the Northwestern United States