State of New Jersey v. State of New York, 523 U.S. 767 (1998)
The State of New Jersey v. State of New York represents a landmark Supreme Court decision which addressed the long-standing territorial disagreement over Ellis Island.
Does the 1834 compact between New Jersey and New York allow New York to retain jurisdiction over artificially created land on Ellis Island, or does New Jersey obtain the newly created land?
When territory is altered by substantial anthropogenic augmentation, such as land reclamation, the original compact or agreement terms govern, unless expressly renegotiated or amended.
The Supreme Court held that based on the original compact, the artificial additions to Ellis Island fell under New Jersey’s jurisdiction, while the original, natural portion of the island remained with New York.
This case is pivotal in the study of original jurisdiction and federalism, illustrating how the Court adjudicates territorial disputes between states. It highlights the complexity of jurisdictional boundaries when natural alterations are made by anthropogenic activities. Beyond practical implications for property law among states, it underscores the inviolability of original interstate compacts unless amended by mutual consent, reinforcing the autonomy and contractual obligations of states.