Ashokan Reservoir (ah-SHO-kuhn) (13 sq mi/34 sq km), SE N.Y.; 41°57'N 74°13'W. Completed 1912, it is approximately 10 mi/16 km long. It is supplied by the Esopus and Schoharie watersheds via the Shandaken Tunnel and provides part of N.Y. city’s water supply. Water is carried to the city via the 92-mi/148 km-long Catskill Aqueduct. Completed in 1917, the aqueduct delivers water to Kensico Reservoir near White Plains and Hillview Reservoir in Yonkers, from where it is distributed to parts of N.Y. city through tunnels cut in solid rock. The aqueduct passes 1,114 ft/340 m under the Hudson R. at Storm King Mt. A steel pipe under The Narrows of N.Y. Bay carries water to Silver L., Staten Isl., 120 mi/193 km from Ashokan Reservoir.
