Diamond Hill Preserve, located in northeast Cumberland, Rhode Island, was originally a ski area developed by the Civilian Conservation Corps and a former mining site. It gets its name from the glistening mica found in its rocks. The ski operations at Diamond Hill ceased in the mid-1980s due to poor winter seasons, and in the mid-1990s, the Town of Cumberland took over its management. Today, Diamond Hill Town Park offers 3.8 miles of marked trails that are popular among hikers for their challenging steep climbs, especially the 350-foot elevation gain up the 'Big Hill,' an old ski slope. From the peak of the hill, hikers can enjoy a view extending to Boston on clear days. Dogs are welcome in the park but must be kept on a leash, and owners are required to clean up after them.