The Colebrookdale Railroad offers nearly two-hour expeditions into the Secret Valley, one of the most scenic and historic regions in the northeast. Board one of our meticulously restored century-old rail cars for a two-hour expedition into one of the most scenic and historic regions in the northeast. Once the province of pioneers and patriots, the Colebrookdale is your ticket to a verdant land lost in time. Special autism-friendly excursions.