[Illustration: Section of Map accompanying _Report on the Exploration of the Yellowstone River_, by Bvt. Brig. Gen. W. F. Raynolds, Washington, 1868. Errors and omissions reflect failure of the Raynolds expedition to reach the Yellowstone Park area in 1860.] [Illustration: ] VIII. Epilogue: 1841-1870 After 1840 Yellowstone Park was likewise virtually left in primeval solitude. There is tangible evidence of only four visits of white men during this period, and one attempted visit which failed. In his recently published biography, William Clark Kennerly has it that in 1843 a grand hunting expedition headed by Sir William Drummond Stewart, and including such notables as Sublette and Baptiste Charbonneau, camped one evening among the geysers, having particularly great sport in vain efforts to throttle “old Steam Boat.” In 1844, according to Chittenden, a party of trappers, identity not disclosed, entered Upper Yellowstone Valley from the south, and “passed around the west shore of Yellowstone Lake to the outlet, where they had a severe battle with the Blackfoot Indians, in a broad open tract at that point. The remains of their old corral were still visible as late as 1870.” (This might be a variant of the same battle of 1939, told by Hamilton.) The remaining three expeditions were guided by James Bridger, who in 1843 had set up Fort Bridger on Black’s Fork of Green River, to cater to the emigrants who were beginning to follow the Oregon Trail. James Gemmell claims to have been among those present in 1846 when Bridger led “a trading expedition to the Crows and Sioux,” north up the Green River through Jackson’s Hole to West Thumb, making a tour of the “wonderful spouting springs” and other scenic features before continuing down the Yellowstone. E. S. Topping states that in 1850 Jim Bridger, Kit Carson, and twenty-two others on a prospecting trip out of St. Louis “crossed the mountains to the Yellowstone and down it to the lake and the falls; then across the Divide to the Madison River. They saw the geysers of the lower basin and named the river that drains them the Fire Hole.... The report of this party made quite a stir in St. Louis.”