An official Path Through History Site! Situated on the 12,000 acre Allegheny Reservoir, the Marina is just north of the Allegheny National Forest and west of Allegany State Park in the Enchanted Mountains of New York. Onoville Marina has long been noted as one of the Chautauqua-Allegany region's finest, yet most affordable, marinas with dock spaces, boat launch, fuel dock and campsites. Bald eagles and osprey soar over the pristine waters that reflect the surrounding hills of forest that change with the season, from a variety of green to the blaze of autumn foliage. View this while exploring the ninety-one miles of shoreline and secluded bays, or camp at one of the many U.S. Forest Service campsites accessible only by water.