Meriwether Lewis: Leader of the expedition, former military officer, knowledgeable about Native American languages and customs.
William Clark: Second-in-command, had frontier experience.
Sacagawea: Native American guide and interpreter, assisted with navigation and helped establish relationships with Native tribes.
Thomas Jefferson: U.S. President who initiated the expedition after the Louisiana Purchase.
Find a route to the Pacific Ocean.
Establish contact with Native Americans.
Document new species of plants, animals, and minerals.
Expand fur trade opportunities.
Harsh wilderness and weather conditions.
Dangerous wildlife and terrain.
Navigational challenges due to limited resources.
Struggles with hunger and reliance on hunting and foraging.
Mostly positive, with Native tribes helping by providing supplies, guiding, and translating.
Some conflict with the Blackfeet Indians on the return trip, which led to casualties.
No clear Northwest Passage, but overland travel to the Pacific was proven possible.
Discovered vast natural resources, including new species.
Created opportunities for territorial expansion and settlement in the West.
Strengthened U.S. claim to the Oregon Territory.
Set the stage for future territorial disputes.