First Edition. Hardcover. Near fine. 1st Congress, 1st Seassion, [Senate Document] 46. 9 pp. Unopened copy with slight toning to top edge, tipped into a cloth folder with paper label on upper board. Streeter Sale 155: "Riley’s report gives details of the expedition in 1829 with an account of an attack by the Indians on the wagon train."Wagner-Camp 41: "Four companies of the Sixth Regiment of Infantry comprised the escort of a caravan of traders bound for Santa Fe. They escorted the caravan as far as the Cimmaron River, then returned to Chouteau's Island on the Arkansas River where they were subjected to several days' attacks by Indians. They remained there until October 12, when a return caravan from Santa Fe arrived under Mexican military escort."