Lewis and Clark mapped over 7700 miles of uncharted territory opening western routes to settlers. A treatie was formed by Thomas Jefferson between the settlers and the Indians. Both Lewis and Clark signed and sealed the treatie. In 1806, Lewis was appointed governor of the Lousiana Territory. On October 10, 1809 he died mysteriously from two gunshot wounds near the Natchez trace, where there were a number of robbers coming up and down the river. Nobody knows whether it was suicide or murder. Clark later became governor of Missouri Territory and Superintendent of Indian Affairs.