The most notable feature of the Preserve is the system of carriage roads built by John D. Rockefeller Sr. and John D. Rockefeller Jr. Designed to complement the landscape, the carriage roads, many of which are handicapped accessible, allow visitors to experience and enjoy the natural wonders of the area. These scenic paths wind through wetlands, woodlands, meadows, and fields and past streams, rivers, and lakes. They traverse wood and stone bridges, including the first triple arch bridge in America. One road passes by the foundation of Rockwood Hall, once the 220 room home of William Rockefeller. Its Olmsted designed landscape with its panoramic view of the Hudson River remains a spot of beauty for all who visit. Trail maps (with distance and grade descriptions) of all the carriage roads and equestrian permits are available at the Preserve Office. Hunting, swimming, biking, snowmobiling, camping, and open fires are strictly prohibited.