This canon was too rough for wagons to pass over.

Out in the valley near its mouth was a mound about four feet high and in the top of this a little well that held about a pailful of water that was quite strong of sulphur.

When stirred it would look quite black.

About the mouth of the well was a wire grass that seemed to prevent it caving in.

It seems the drifting sand had slowly built this little mound about the little well of water in a curious way.