Every year he built one or more boats trying to improve on each.

The Stone model (see cut, page 129) was the final outcome.

The usual high-water mark at Bright Angel Trail is 45 feet higher than the usual low-water mark.

Stanton measured the greatest declivity in Cataract Canyon and found it to be 55 feet in two miles.

The total fall in Cataract Canyon he made 355 feet.