midday, September 23, 1806
They had to face difficulties , hardships and sufferings again , but they had learned from experience and were better prepared to do so . They embarked on the Yellowstone July 24 , and ten days later reached its junction with the Missouri . At this point the men were driven almost frantic by the mosquitoes . At midday , September 23 , 1806 , they arrived at St. Louis , where the whole town turned out to welcome them . There the party was disbanded , and , passing to their various destinations , the Lewis and Clark expedition took its place in history . During the latter part of the chat between Lewis and Clark , Deerfoot came quietly forward and sat down beside the Shelton boys . He listened closely to all that was said .