The national parks portfolio . Photograph by J. E. Haynes, St Paul Castle Well, One of the Innumerable Hot SpringsThese springs, whose marvellously clear water is a deep blue, have an astonishing depth. Photograph by Edward S. Curtis The Carved and Fretted Terraces at Mammoth Hot SpringsThese great white hills, deposited and built up by the hot waters, sometimes envelope forest trees

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Keywords: ., bookauthorunitedstatesnationalp, bookcentury1900, bookdecade1910