New York–New Jersey Highlands New York–New Jersey Highlands The New York – New Jersey Highlands is a geological formation composed primarily of Precambrian igneous and metamorphic rock running from the Delaware River near Musconetcong Mountain, northeast through the Skylands Region of New Jersey along the Bearfort Ridge and the Ramapo Mountains, Sterling Forest, Harriman and Bear Mountain State Parks in New York, to the Hudson River at Storm King Mountain. The northern region is also known as the Hudson Highlands and the southern as the New Jersey Highlands. A broader definition would extend the region west to Reading, Pennsylvania, and east to the Housatonic
New Jersey v. New York New Jersey v. New York New Jersey v. New York, 523 U.S. 767 (1998), was a United States Supreme Court case in which it was determined that roughly 90% of Ellis Island was part of New Jersey rather than New York. An interstate compact had been signed between New York and New Jersey in 1834, prior to Ellis Island becoming a major immigration center. This compact granted New York the rights to all islands in the water channel separating the two states including both Ellis Island and Liberty Island, but granting New Jersey the rights to half of the water