USA HISTORY

Detailed explanation-1: -How long did the whole expedition last? From May 14, 1804 to September 23, 1806. Two years, four months, ten days-from their departure from Camp Wood to their return to St. Louis at journey’s end.

Detailed explanation-2: -The group spent 146 days on its outbound trip in October of 1804, when it set up a winter camp near Washburn. The second visit was on its return from the Pacific. The expedition stopped again in August of 1806, which was when Sakakawea was returned to her home.

Detailed explanation-3: -The Corps arrives in St. Louis, successfully concluding their 8, 000-mile journey after two years, four months and 10 days. Lewis arrives in Washington, D.C.

Detailed explanation-4: -Expedition from May 14, 1804, to October 16, 1805. Over the duration of the trip, from May 14, 1804, to September 23, 1806, from St. Louis, Missouri, to the Pacific Ocean and back, the Corps of Discovery, as the expedition company was called, traveled nearly 8, 000 miles (13, 000 km).

Detailed explanation-5: -The expedition crossed the Continental Divide of the Americas near the Lemhi Pass, eventually coming to the Columbia River, and the Pacific Ocean in 1805. The return voyage began on March 23, 1806, at Fort Clatsop, Oregon, and ended on September 23 of the same year.