Spring Lewis leaves Washington D.C and heads to Philadelphia to prepare for expedition. March 23 The expedition heads back toward home. Fall July 4 Lewis leaves Washington D.C. and heads to Pittsburgh to oversee keelboat construction. The Corps of Discovery expedition heads down the Ohio River. Camp Wood/Camp Dubois is established on the east bank of Mississippi River upstream from St. Louis, Missouri. December 12 The Corps of Discovery returns home to St. Louis. September 23 May 14 The expedition leaves Camp Wood/Camp Dubois with roughly 50 men. They travel up the Missouri River in three boats. September 7 The group sees new animals like coyotes and antelope in South Dakota. August 3 First official council between Native tribes of the West and U.S. officials just North of Omaha, Nebraska. November 4 Near Bismarck, North Dakota, the expedition group meets Sacagawea. April 7 Lewis and Clark send one of the boats back down river carrying goods to show Thomas Jefferson such as Indian corn and a prairie dog. October 16 The expedition reaches the Columbia River, full of salmon. June 13 Lewis discovers a grand waterfall followed by four others along the Missouri River. December 17 The group records a temperature of 45 degrees below zero. February 11 Sacagawea has a baby boy named Jean Baptiste. April 29 The expedition reaches what is now Montana where they encounter a herd of 10,000 buffalo. August 17 The expedition finds a Shoshone village where the chief is Sacagawea’s brother. August 12 Lewis reaches the border between Montana and Idaho and sees only more mountains. November 7 After seeing what he thinks is the end of land, Lewis and his group are stranded for 3 weeks due to high winds. July The group reaches the Three Forks of the Missouri and Sacagawea finally recognizes where they are. Timeline of the Lewis and Clark Expedition 1803 1804 1806 1805 https://home-school.lovetoknow.com/homeschool-topics-lessons/lewis-clark-kids