Northern Prairie Wildlife Research Center
Ross was a Canadian fur trapper working for the Hudson's Bay Company. He was briefly in charge of the Snake River brigade but was relieved of the job when he befriended Smith and his party. Ross kept extensive notes and recorded much of the early history of the fur trade in the northwest. He was in the Yellowstone Park area in 1819 with McKenzie and traveled along the Clark Fork, Bitterroot, and Bighole Rivers between 1823 and 1824. Although Ross did not specifically record natural history information, he made notes on big game abundance and numbers of animals killed or trapped.
Ross, A. 1913. Journal of Flathead Post in 1825. Oregon Historical Quarterly, 14 Ross, A. 1849. Adventures of the first settlers on the Oregon or Columbia River. London. Ross, A. 1855. The fur hunters of the far West. 2 vols. Smith, Elder, & Co., London.