Description:
(American Explorer and the First White Man to Have Seen and Described 'Yellowstone National Park') John Colter played a vital role in exploring the American West in the early 19th century. As a member of the Lewis and Clark Expedition, he later undertook independent explorations in areas that would eventually become Yellowstone National Park and the Teton Mountain Range. His solo expeditions in 1807–1808 marked him as the first documented European to journey through these regions, establishing his reputation as the inaugural mountain man.