 Yes, in 1823, the Arakara Indians, often called reed by the mountain men, had earth lodged villages on the banks of the Missouri River, a few miles upriver from the mouth of the Grand River. From their location on a big bend, the Arakara could control upriver travel. In June 1823, William Ashley camped near the Arakara villages to trade for horses. Before Ashley could leave, a fight ensued, with 14 Ashley men killed and 11 wounded. Arakara losses are thought to be 5 to 8. Hugh Glass was wounded in the leg. Once the survivors got to the boats, they drifted downstream to the Grand River and eventually backtracked to Fort Kiowa. They did not abandon the boats as shown in the movie. When Henry arrived from upriver, Ashley and Henry decided to send Henry back upriver to Grand River and overland to Fort Henry to avoid the Arakara.