From Atlas Altera

Raritane is a state in eastern America, bordering Long Island to the northeast, Delaware to the west, Mariana and Philadelphia to the southwest, and the Atlantic Ocean to the south and west. Despite being among the smallest states, it is also the densest, with most of the state either being within the metro areas of New York or Philadelphia, the former including Trenton, the state capital, and New Jersey, the largest city.