 Its length is nine miles, two furlongs and four chains; in the first mile and seven chains of which, to Wheel [sic] Beauchamp, there is a rise of 103 feet; from thence to its termination it is one gradual inclination with a fall of 555 feet to high-water-mark.From Carnon Gate there is a branch to Narrabo of one mile one furlong; another branch from Nangiles to Wheel Fortune of three furlongs and five chains; another from Twelve Heads to Wheel Bissey, two miles, two furlongs and five chains in length; and another from Wheel Beauchamp to Wheel Buller, of two furlongs four chains in length.The total length of main line and branches is thirteen miles, three furlongs and eight chains.