Note 217 — OREGON MISSIONS AN OUTLINE SKETCH OF OREGON TERRITORY AND ITS MISSIONS (continued 2)
Reading edition
Taken from a composition of De Smet’s on his second journey to the Rocky Mountains (1841), and then applied to the heights around the sources of the Platte. See Chittenden and Richardson, De Smet, iv, pp. 1353, 1354.—Ed.