Étienne Brûlé was a French explorer and adventurer, instrumental in the early exploration of the North American continent, particularly in Canada.
John Colter, an American explorer and mountain man, is renowned for his daring exploits in the uncharted western frontier, including the discovery of Yellowstone National Park.
Jedediah Smith was an American explorer, trapper, and frontiersman who significantly contributed to the mapping and exploration of the American West during the 19th century.