On June 1,1845, Frémont and his armed expedition party left St. Louis having the immediate goal to locate the source of the Arkansas River, on the east side of the Rocky Mountains.
Frémont left St. Louis. This was on June 1,1845. His armed expedition party left St. Louis. This was on June 1,1845. This St. Louis was having the immediate goal. This was to locate the source of the Arkansas River, on the east side of the Rocky Mountains.