The next day the Rees surrendered. Henry Leavenworth, commander of the army men, managed to bungle the treaty terms. First, he was not authorized to draw up and execute a treaty. Then he gave the Arikaras too much and did not get all the fur company's goods back. Then somehow the Arikaras were able to sneak out on foot during the night. The reputation of the army was smeared in the eyes of the Indians over the incident. The incident also caused many of the trappers to leave Ashley's expedition and go back east.
Glass left with Henry, a young Jim Bridger, John Fitzgerald, Black Harris, and a few others. They only had enough horses to carry supplies, since the Indians chased off the rest. They started out on August 16 to find the mouth of the Yellowstone River. Four days later the group was attacked by Indians. Two of them, James Anderson and Auguste Neill were killed. By August 23, the remaining men had reached the town of Grand River, South Dakota. Hugh was out wandering by himself like he usually did, much to the conservation of Henry.
Unfortunately Hugh ran into a female grizzly protecting her cubs. Before he could fire a shot, the bear attacked him. His arm and back were quite scraped and mangled by the bear's claws. The back of his scalp was also marked. He finally got off a shot that mauled her but too late to protect himself. The shot alerted two of his friends who put a killing shot into the bear. They didn't think Glass could possible make it. But they tied up his wounds the best they could. Somehow he managed to last the night. The others were now concerned that the injured man would slow them down in dangerous Indian country. Yet the code of the west did not allow an injured man to be abandoned. They built a litter and carried him for awhile. They made slow progress over the next several days. Finally Henry paid two volunteers to stay behind with Glass to bury him when he died. This way at least some of the men would have a chance to survive.
