Lewis and Clark Expedition (1803-06) In January of 1803, Jefferson requested $2500 from Congress to pay for the costs of the trip. Thomas Jefferson then commissioned Capt. Meriwether Lewis (his presidential aide) to explore the newly purchased Louisiana Territory. This territory is what is now the northwest United States. Before Lewis met up with Clark, he began the expedition on August 30, 1803 in Pittsburgh PA. Lt. William Clark would offer to join Lewis on the expedition weeks later on October 13, 1803 at Camp Dubois (in present-day Indiana). They then named their team the "Corps of Discovery." At the time, Lewis was 29 years old and Clark was 33. From there, they sailed down the Ohio River towards St. Louis. The party of nearly 30 --including Lewis and Clark, three sergeants, 22 enlisted men, volunteers, interpreters, and Clark's slave -- departed St. Louis in May 1804 heading up the Missouri River. They would spend their first winter at Fort Mandan at the present site of Bismarck, North Dakota. It took about 3 weeks to build Fort Mandan, which they named for the local natives, and they settled in on Nov. 27, 1804. There, they acquired a guide and translator, the Shoshone woman Sacagawea. In spring 1805, they continued to the headwaters of the Missouri River, struggled across the Continental Divide, and headed west along the Salmon, Snake, and Columbia rivers to the Pacific. They returned to St. Louis the following year.
The Lewis and Clark Expedition explored the Louisiana Purchase territory.
Louisiana purchase stretched from the Mississippi river to the rocky mountains.
Westward of the Mississippi River (In Mississippi)
Rockie Mountains
The Mississippi River was the natural boundary of the Louisiana Purchase on the east.
The cites along the Louisiana purchase we're not In the lncluded
Lewsi & Clark
The French
Sacajawea
Congress
The Louisiana Purchase and Oregon are divided by the Rocky Mountains.
The United States through the Louisiana Purchase.