Which canal is longer, Shinnecock Canal and Warren County Canal?
Shinnecock Canal:  At 4700 ft long, it connects Great Peconic Bay and the north fork of Long Island with Shinnecock Bay and the Atlantic Ocean. Warren County Canal: The Warren County Canal was a branch of the Miami and Erie Canal in southwestern Ohio about 20 mi in length that connected the Warren County seat of Lebanon to the main canal at Middletown in the mid-19th century.
Warren County Canal