12. Milk River.--Good camp. 15-1/2. Milk River.--Good camps between this and the last camp. 10-3/4. Milk River.--Good camp. 20. Milk River.--Good camp. 16. Milk River.--Good camp. 18. Milk River.--At the third crossing.--Good camp. 7-1/2. Branch of Milk River.--Good camp. 17-1/2. Branch of Milk River.--Several good camps between this and the last camp. 6. Branch of Milk River.--Good camp. 19-1/4. Prairie Spring.--No wood; water and grass plenty. 13-3/4. Teton River.--Road crosses "Marias River." 8-3/4. Teton River, at Fort Benton.--A trading-post. 2-1/2. Small Creek.--Good wood, water, and grass. 18-3/4. Missouri River.--Good camp. 20-1/2. Missouri River.--Above the falls. Road much broken into ravines. Wood, water, and grass. 16-3/4. Missouri River.--Road crosses first tributary above Fort Benton at ten miles. 17. Missouri River.--The road becomes very bad after fourteen miles, but is better on the north side of the Missouri. 6. Missouri River.--The road is exceedingly rough and broken; crosses the river.--Good wood, water, and grass. 11. Tributary of the Missouri.--The most difficult part of the road is passed, but the country is still hilly. 18-1/2. Tributary of the Missouri.--The road follows up the last-mentioned stream to near its head. Good camps. 15. Near the summit of Little Blackfoot Pass, on a broad Indian trail; excellent road. 14-3/4. Little Blackfoot River.--Road crosses the summit of the Rocky Mountains. Good road for wagons, with many camping-places. 17-1/2. Little Blackfoot River.--Road good, descending along the river. Near the camp a large fork comes in. 28-1/2. Little Blackfoot River.--Good road, which follows the broad, open valley for 14 miles. Good camps. 19-1/2.-Little Blackfoot River.--The valley contracts so that wagons will be forced to take the bed of the river in some places. The river is fordable, and the trail crosses it five times during the day. 22-1/2. Blackfoot River.--Sixteen miles from the last camp "Blackfoot" and "Hell Gate" River's enter, and about one mile of this distance is impassable for wagons; they would have to cross the river, which is fordable. Good camps. 27-1/2. Fort Owen.--Road runs up the St. Mary's River to Fort Owen over a broad, good trail in the valley. 40. St. Mary's River.--The south Nez Perces trail leaves the main trail, which ascends the St. Mary's Valley to the Forks, and follows the southwest fork to its source. To the Forks the valley of the St. Mary's is open, and admits wagons. 24. Southwest Fork of St. Mary's River.--The road follows a narrow trail, crossing the river frequently, and is not passable for wagons. The valley is narrow, and shut in by hills.