3years after starting the expedition
1492
St. Louis, Missouri
It was the Missouri River
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.
Louis and Clark took the same route and were one group not separate groups.
Lewis and Clark finished their expedition in September 1806 when they returned to St. Louis, Missouri.
1804
1492
The expedition of Lewis and Clark officially ended in September 1806 when they returned to St. Louis, Missouri after successfully exploring the western territories of the United States.
the starting place was St. Louis
William Clark ended the Lewis & Clark expedition where is started, in St. Louis, Missouri
The Lewis and Clark Expedition : Captain Meriwether Lewis and Second Lieutenant William Clark .
Meriweather Lewis and William Clark led the expedition that explored the Louisiana Territory for the US government.
Lewis and Clark visited several states and places during their expedition. Some of the places were Atchison, KS, Metropolis, IL, and St. Louis, MO.
It was the Missouri River
To answer that question, I have to say first that it did not begin in St. Louis, because 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'. From there, they sailed down the Ohio River towards St. Louis. The expedition then ended on September 23, 1806 upon their return to St. Louis from Oregon.If you say the expedition began on October 13, 1803 when Clark joined in, the expedition took more or less 25,790 hours.If you say the expedition began when Lewis first left Pittsburgh on August 30, 1803, then the expedition took more or less 26,880 hours.
The Lewis and Clark expedition took place from May 1804 to September 1806. They set out from St. Louis on May 14, 1804, and reached the Pacific Ocean in November 1805. They returned to St. Louis on September 23, 1806.