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Yellowstone National Park: Its Exploration and Establishment Part I: Early Knowledge

A fragmentary knowledge of the Yellowstone region was recorded by the explorers, trappers, missionaries, and prospectors of the period from 1805 to 1869. Such information was often discredited, yet provided the enticement for more fruitful exploration.

• The Lewis and Clark Era (1805-14)
• The Fur Trade Era (1818-42)
• The Exploring Era (1851-63)
• The Prospecting Era (1863-71)

Last Modified: Tues, Jul 4 2000 07:08:48 am PDT
http://www.cr.nps.gov/history/online_books/haines1/iee1.htm