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of the top of this divide is 7850 feet- above this water or 3050 above our permanent camp - From this elevation I was enabled to study the water shed of the Blk Hills to the north & west. The stream breaks off to the south - north west & north-east- & I am satisfied that we were on the very back bone of this system of Hills & that with the exception of a few peaks, we were on the highest ground of the Hills. This supposition will have to be verified later - From this elevation we soon began