The Greater Grand Forks Greenway is a huge greenway bordering the Red River and Red Lake River in the twin cities of Grand Forks, North Dakota and East Grand Forks, Minnesota (commonly called Greater Grand Forks). At 2,200 acres (9 km2), the Greenway is more than twice the size of New York City's Central Park. It has an extensive, 20-mile (32 km) system of bike paths, which are used by bikers, walkers, joggers, and rollerbladers. In 2007, the system was designated as a National Recreation Trail by the National Park Service.