The Ashokan Reservoir is a large water reservoir located in the Catskill Mountains of New York. It was created in the early 20th century to supply drinking water to the city of New York City. The reservoir has a capacity of about 122 billion gallons and covers approximately 8,000 acres. Constructed between 1907 and 1915, the Ashokan Reservoir is part of the New York City water supply system. It is fed by the Esopus Creek and is crucial for providing clean water to millions of residents. The area around the reservoir is also popular for recreational activities like hiking and fishing.