Page:Popular Science Monthly Volume 56.djvu/477

Rh has been accumulated up to the present time, and there is nothing that looks like a promise to the geological eye. At the same time, it would be premature to assert that such a reef or series of reefs may not be discovered in the future. The hill crests that have



furnished so much of the white material of the high benches of the Bonanza and the Eldorado may perhaps be searched with best advantage in this direction, and thence extended to the water parting which surrounds or incloses the upper waters of Gay Gulch.