The Black Pipe, about 3 miles west of Jawbone Station on Jawbone Canyon Rd. is part of the original Los Angeles Aqueduct, built between 1908-1913. The riveted iron pipe is a siphon, one of 23 in the system, used to bring water up and over the canyons. The original aqueduct was 233 miles in length, but was extended to 338 miles in 1940. The intake is in Lee Vining Canyon above Mono Lake in the Sierras. The aqueduct ends near the intersection of Highway 5 and Highway 14. The original aqueduct is considered a hallmark of Twentieth Century civil engineering.