Date | October 16, 1804 – January 26, 1806 |
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Duration | 103 days |
Motive | Explore the 1803 Louisiana Purchase |
Organized by | U.S. President Thomas Jefferson |
Participants | Grand Expedition, i.e. Dunbar, Hunter, and 17 men |
The Dunbar and Hunter Expedition, also known as the Grand Expedition,[1] was an expedition led by William Dunbar and Dr. George Hunter with the purpose of exploring the lower portion of the Louisiana Purchase. The expedition was given the orders by U.S. President Thomas Jefferson to explore parts of Mississippi and Missouri. The members of the expedition recorded information about the Ouachita River, and studied things such as the hot springs in present-day Arkansas and provided one of the earliest descriptions of Arkansas and Louisiana.[2]