REPORT BY GEORGE M. DAWSON. 31 —here enters the Salmon River from the east, an area of comparatively low ground, in shape nearly an equilateral triangle, lying at the junc- tion of the streams. The apex of the triangle, pointing down stream, is occupied by a little rocky hill, while the remainder, elevated about 100 feet above Salmon River, is a gravelly flat, descending by several rough steps on the Tahyesco side. Making the descent of about 500 feet by a very steep and critical trail, forming a succession of sharp zig-zags, we reached the flat by four o'clock. The rocks of this vicinity are chiefly very hard felsites, and porphy- , rites, of the Mesozoic volcanic series, tilted to a vertical attitude, and traversed by dykes of granite. The river is exceedingly rapid and tur- bulent, and is hemmed in by rugged cliffs, which, however, do not form a canon of great depth. From the'edges of the cliffs the mountains rise in rough slopes of greater or less inclination to a height of probably 8,000 feet. There are two Indian houses here, one on each side of the Salmon River, opposite a small waterfall, at which the natives make their annual fishery. A precarious bridge of poles,and sticks is constructed across the torrent, and a series of baskets arranged along the front of the fall, into which, in trying to leap up, the salmon drop. Two Indians, who had attached themselves to us so far, appeared much disappointed at the height of the water and consequent absence of fish. They told me that long ago the bridge used to remain always, but now that the rock in the middle of the stream, on which it is partly founded, had become so much reduced in size, that the structure is washed away every winter. At the Salmon House the Douglas fir, which does not appear east of this over a considerable tract of country, is again scen as a large tree. There are a few modern Indian graves on the flats, and three small heaps of stones, probably also sepulchral, to which superstitious stories attach, and an offering of a twig is made by each passer-by. July 11.—Took three photographs and then hurried back to the place where we had left the mules. Got them packed, and returned by the trail to the lower end of Tanyabunkut Lake. Here we found the tribe of Indians, waiting till a favorable report should be received fromthe Salmon House. I had learned by cross-questioning the Indians, that a trail, which was sometimes travelled, existed from this place to Na-coont- loon Lake, south of the Salmon River. This I was anxious to examine, but found it very difficult to procure a guide, partly from reluctance to hard work among the Indians, and partly also, I think, from, the fact Indian salmon fishery. Re-appearance of Douglas fir. Old trail to Na-coont-loon.