It also gets water from said creek and its many tributaries. It flows another to the Ashokan Reservoir. The water then flows into Olivebridge, New York to enter the Catskill Aqueduct. It flows into the Kensico Reservoir, just north of White Plains, to mix with water from the Delaware Aqueduct. The water flows a few more miles into the Hillview Reservoir in Yonkers, the main collecting point for the water. Permitted activities Due to the need to ensure the safety of the water system, and to make sure the nearly century-old dams stay intact, only limited activities are permitted around the reservoir property, including fishing and logging. A special license is required for such activities. For instance, to go boating or fishing, a public access permit is needed that was issued after 2002. Otherwise, it is no longer valid. Also, such activities as swimming and diving are strictly prohibited. This is in order to make sure the water stays as clean as possible. It is also illegal to bring gasoline-powered motorcraft into the reservoir. This is in case gasoline leaks into the water and pollutes it. Pine and spruce trees were planted around the banks at the time of dam and lake construction to prevent erosion. It was also believed by engineers of the time that broad-leaved deciduous trees polluted the water with nutrients more so than conifers. After the September 11, 2001 terrorist attacks, the city and state decided to permanently close the spillway road to vehicular traffic as a security precaution. This has added a great deal more traveling time and distance for those on the south side of the reservoir to reach locations to the north. The city compensates the local school district for the extra fuel costs its buses have incurred. The Reservoir Road causeway, however, is still open. See also List of reservoirs and dams in New York Ashokan Farewell Ashokan Center References Further reading External links Deepwater, a documentary about the reservoir NYCDEP Recreational Use Permit Application Reservoirs in Ulster County, New York Catskill/Delaware watersheds Catskill Park 1915 establishments in New York (state)