The Cascade range, where it crosses the Columbia river, exhibits enormous cross sections of lava, and at its base are petrified trunks of trees, which have been covered and hidden from view except where the wash of the mighty stream has exposed them. Indians have told me, of their knowledge, that, buried deep under these outpours of basalt, or volcanic tufa, are bones of animals of _siah_, or the long ago. Traditions of the great landslide at the Cascades are many, but vary little in form. According to one account, the mountain tops fell together and formed a kind of arch, under which the water flowed, until the overhanging rocks finally fell into the stream and made a dam or gorge. As the rock is columnar basalt, very friable and easily disintegrated, that was not impossible, and the landscape suggests some such giant avalanche. The submerged trees are plainly visible near this locality. Animal remains I have not seen, but these salmon-eating Indians have lived on the river’s border through countless ages, and know every feature in their surroundings by constant association for generations, and naturally ally these facts with their religious theories. (_MacMurray MS._) In an article on “The submerged trees of the Columbia river,” in Science of February 18, 1887, the geologist, Major Clarence E. Dutton, also notices the peculiar formation at the Cascades and mentions the Indian tradition of a natural bridge over the river at this point. [Illustration: PL. XC SMOHALLA CHURCH ON YAKIMA RESERVATION] MacMurray continues: Coteeakun went on to say that some day Saghalee Tyee would again overturn the mountains and so expose these bones, which, having been preserved through so long a time, would be reoccupied by the spirits which now dwell in the mountain tops, watching their descendants on earth and waiting for the resurrection to come. The voices of these spirits of the dead can be heard at all times in the mountains, and often they answer back when spoken to. Mourners who wail for their dead hear spirit voices replying, and know they will always remain near them. No man knows when it will come, and only those who have observed nature’s laws and adhered to the faith of their ancestors will have their bones so preserved and be certain of an earthly tenement for their spirits. He wanted me to confirm this.