Lewis and Clark Timeline by aschuler By aschuler Period: May 14, 1804 to Sep 23, 1806 The Journey Period: May 14, 1804 to Mar 18, 1806 Journey to the ocean Jul 29, 1804 Had travled 600 miles Aug 2, 1804 Met first indians:friendly Aug 20, 1804 Sergeant Floyd dies of sickness Dec 2, 1804 - May 1805 Spent winter in Mandan villages May 3, 1805 One boat sunk Jun 13, 1805 Reach Great Falls Jul 16, 1805 Made it around the falls Aug 11, 1805 Get horses from the Shoshone Oct 7, 1805 Made it across the Rocky moutains Nov 13, 1805 Made it to the Pacific Ocean Mar 17, 1806 Left for home Period: Mar 18, 1806 to Sep 23, 1806 Journey home Jun 30, 1806 Expidition split up Aug 11, 1806 Groups reunited Sep 23, 1806 Returned to St.Louis