Old Croton Aqueduct State Historic Park 
15 Walnut Street
Dobbs Ferry, NY 10522
914-693-5259
https://parks.ny.gov/parks/96/details.aspx
State Park: Bike, Birding, Hike, History, Picnic, Snow Sports, Walk
During the 1830s New York City was in dire need of a fresh water supply to combat the steady rise of disease and to fight numerous fires that often engulfed large tracts of businesses and homes. A 41 mile aqueduct and dam was built in order to run water from the Croton River to New York City. Although no longer the sole supplier of fresh water, the Old Croton Aqueduct continued to provide water to New York City until 1965. Presently, Old Croton Aqueduct State Historic Park is a linear park which runs from Van Cortlandt Park at the Bronx County/City of Yonkers border to the Croton Dam in Cortlandt. In 1987 a section was reopened to supply the Town of Ossining and in 1992 the Old Croton Aqueduct was awarded National Historic Landmark Status. The scenic path over the underground aqueduct winds through urban centers and small communities. It passes near numerous historic sites, preserves, a museum highlighting the construction of the Aqueduct, and many homes. The Aqueduct’s grassy ceiling provides abundant recreational opportunities for outdoor enthusiasts. While primarily for walking and running, parts of the trail are suitable for horseback riding, biking (except during “mud season”), bird watching, snowshoeing, and cross country skiing.