Sometimes It Steals Along With A Tranquil And Noiseless Course; At Other Times, For Miles And Miles, It Dashes On In A Thousand Rapids, Wild And Beautiful To The Eye, And Lulling The Ear With The Soft Tumult Of Plashing Waters.

Many of the tributary streams of Snake River, rival it in the wildness and picturesqueness of their scenery.

That called the Bruneau; is particularly cited. It runs through a tremendous chasm, rather than a valley, extending upwards of a hundred and fifty miles. You come upon it on a sudden, in traversing a level plain. It seems as if you could throw a stone across from cliff to cliff; yet, the valley is near two thousand feet deep: so that the river looks like an inconsiderable stream. Basaltic rocks rise perpendicularly, so that it is impossible to get from the plain to the water, or from the river margin to the plain. The current is bright and limpid. Hot springs are found on the borders of this river. One bursts out of the cliffs forty feet above the river, in a stream sufficient to turn a mill, and sends up a cloud of vapor.

We find a characteristic picture of this volcanic region of mountains and streams, furnished by the journal of Mr. Wyeth, which lies before us; who ascended a peak in the neighborhood we are describing. From this summit, the country, he says, appears an indescribable chaos; the tops of the hills exhibit the same strata as far as the eye can reach; and appear to have once formed the level of the country; and the valleys to be formed by the sinking of the earth, rather than the rising of the hills. Through the deep cracks and chasms thus formed, the rivers and brooks make their way, which renders it difficult to follow them. All these basaltic channels are called cut rocks by the trappers. Many of the mountain streams disappear in the plains; either absorbed by their thirsty soil, and by the porous surface of the lava, or swallowed up in gulfs and chasms.

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