Easy 1-mile hike north along the Aqueduct and atop the beautiful Croton Dam. Meet near the restrooms at the parking lot at Croton Gorge Park, Rte. 129, Cortlandt, NY 10567. The leaders of the hike will discuss the history and construction of the Old Croton Aqueduct and the features of the Croton Dam, the trailhead of the Aqueduct trail. The Aqueduct was completed in 1842 to supply water to New York City.