The Irving account of Captain Bonneville's adventures contains additional information on Eastern Shoshone settlement patterns. It is here also that we receive our first information on the Shoshone who later are known to us as the Dukarika and who inhabited the mountainous terrain of the Wind River Mountains and adjacent high country (Irving, 1850, p. 139). The journal also supplements Leonard's account of the trappers' sojurn in Wind River Valley, which, Irving wrote (1837, 2:17) was infested by Blackfoot and Crow Indians and was one of the favorite habitats of the latter (p. 22). One of the trapping party's members was taken captive by the Crow on the Popo Agie River, which flows past Lander, Wyoming, but was released unharmed (pp. 24-25). It is to be noted that the trappers were in the Wind River Valley at the end of September but saw no Shoshone, although this was approximately the time of the annual buffalo hunt. Upon leaving Wind River, Bonneville headed for the Sweetwater River, which, he stated, was beyond the limits of Crow country (p. 26). He then went to Hams Fork, a tributary of the Green River, and encountered a Shoshone encampment with the Fitzpatrick party (p. 27). It is doubtful whether Shoshonean peoples hunted extensively east of the Continental Divide in the period following their eighteenth-century retreat from the northern Plains and before the disappearance of the buffalo west of the Rockies. Although the great herds of the Missouri drainage were not found in the lands inhabited by the Shoshone, it is quite possible that there were sufficient buffalo there to meet the needs of the population. Bonneville met a group of twenty-five mounted Bannock in the neighborhood of Soda Springs, Idaho, in November, 1833, and, at their invitation, joined them in a buffalo hunt there (p. 33). After taking sufficient meat, the Bannock returned to their winter quarters at the mouth of the Portneuf River (p. 35). The winter of 1834-35 again found Bonneville on the Bear River, this time on its upper reaches, where he made winter camp with "a small band of Shoshonies" (p. 210). Farther upstream was an encampment of "Eutaw" Indians, who were hostile to the Shoshone (p. 213). Bonneville, however, managed to prevent conflict between the two groups. One advantage of this winter camp, and a possible source of attraction for the Ute Indians, was the presence of antelope during the winter. Bonneville witnessed one successful "surround" by horsemen, aided in their efforts by supernatural charms reminiscent of Great Basin antelope drives (pp. 214-215).