"As he traveled downriver from Fort Mandan at the end of the journey, Clark wrote to Charbonneau:=== Later life and death ===After the expedition, Charbonneau and Sacagawea spent three years among the Hidatsa before accepting William Clark's invitation to settle in St. Louis, Missouri, in 1809.
Ko se je ekspedicija bližala ustju reke Columbia na tihomorski obali, se je Sacagawea odpovedala svojemu pasu, narejenem iz biserov, da bi kapitanom omogočila zamenjavo za krzneno obleko, ki so jo namenili predsedniku Thomasu Jeffersonu.