including distributers, is fifty-five miles long. Its size is 8.65 feet
on top, 5 feet at. bottom, and 3-1/2 feet deep. The ditch and
distributers cost $466,707. Its grade is sixteen feet per mile,
discharging 3,200 miner's inches.
Milton Company's ditches are eighty-four miles long, and their grades
are from twelve to thirty-two feet to the mile. The size of the main
ditch is 4 feet on the bottom, 7.6 feet on top, and 3-1/2 feet deep, discharging 3,000 miner's inches ; cost, $462,998.