Dr. A. C. Peale, prominently connected with the early geological explorations of this region, states that the Rustic Geyser in the Hart Lake Geyser Basin is "bordered by logs which are coated with a crystalline, semi-translucent deposit of geyserite. These logs were evidently placed around the geyser by either Indians or white men a number of years ago, as the coating is thick and the logs firmly attached to the surrounding deposit."[G] [G] Page 298, Twelfth Annual Report of Dr. Hayden. See Appendix E. It is more than probable that this was the work of trappers. More recent and perishable proofs of the presence of Indians in the Park were found by the early explorers in the rude wick-e-ups, brush inclosures, and similar contrivances of the lonely Sheepeaters; and it is not improbable that many of the arrow and spear heads were the work of these Indians. The real question of doubt in regard to Indian occupancy of, or visits to, the Park, is therefore not one of fact, but of degree. The Sheepeaters certainly dwelt there; but as to other tribes, their acquaintance with it seems to have been very limited. No word of information about the geyser regions ever fell from their lips, except that the surrounding country was known to them as the Burning Mountains. With one or two exceptions, the old trails were very indistinct, requiring an experienced eye to distinguish them from game trails. Their undeveloped condition indicated infrequent use. Old trappers who have known this region for fifty years say that the great majority of Indians never saw it. Able Indian guides in the surrounding country became lost when they entered the Park, and the Nez Percés were forced to impress a white man as guide when they crossed the Park in 1877. An unknown writer, to whom extended reference will be made in a later chapter, visited the Upper Geyser Basin in 1832, accompanied by two Pend d'Oreilles Indians. Neither of these Indians had ever seen or apparently heard of the geysers, and "were quite appalled" at the sight of them, believing them to be "supernatural" and the "production of the Evil Spirit." Lieutenant Doane, who commanded the military escort to the Yellowstone Expedition of 1870, says in his report:[H] "Appearances indicated that the basin [of the Yellowstone Lake] had been almost entirely abandoned by the sons of the forest. A few lodges of Sheepeaters, a branch remnant of the Snake tribe, wretched beasts who run from the sight of a white man, or from any other tribe of Indians, are said to inhabit the fastnesses of the mountains around the lakes, poorly armed and dismounted, obtaining a precarious subsistence, and in a defenseless condition. We saw, however, no recent traces of them. The larger tribes never enter the basin, restrained by superstitious ideas in connection with the thermal springs." [H] Page 26, "Yellowstone Expedition of 1870." See Appendix E.