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Show BEAVER EIVEE VALLEY. 205 acid is found impregnated with lime and baryta, both of which are abundant on the margins of this wonderful lake. The roaring is evidently produced by the force of the liquid through some subterranean cavern; over this vast field of efflorescent sulphate of oxide of iron, there are no signs' of vegetation. On the mountains, and towards its southern boundary, some few Norway pines and cedars grow. The sulphuretted hydrogen gas which impregnates the atmosphere, prevents birds or animals from inhabiting or resorting near its neighborhood. This gas I judge to be generated by the action of diluted sulphuric acid, on proto-sul-phate of iron, all which ingredients are to be found here. Feeling ill effects from inspiring this gas, I finished my examinations quickly, and sought a purer atm'osphere. I made a drawing of the lake, and surrounding mountains. This extraordinary place had probably never before been examined by a white man. None of the many Mormons who were present, and to whom I related the particulars, ever explored it. It lies directly at the base of the Warsatch Mountains, in about 38° 26' latitude, and the same longitude as Fillmore City, and nearly 35 miles south of it. We rejoined our caravan at their noon camp. About one o'clock we resumed our ride, and after a gentle ascent through a beautiful pass in the mountains, we emerged into a large and fertile valley called " Beaver Valley." We camped on Beaver River, thirty miles from Corn Creek. This stream is twenty-five feet wide, and two feet deep at the crossing; it rises and sinks alternately to the Seveir Lake, into which it empties. Only small willows grow on its banks. Bea- |