This bill, known as the "Washington Spy Ring National Historic Trail Designation Act," amends the National Trails System Act to establish a new national historic trail. Its primary purpose is to designate the Washington Spy Ring National Historic Trail , recognizing the significant contributions of the Culper Spy Ring to the American Revolution. The proposed trail will span approximately 50 miles along Long Island's North Shore in New York, connecting key historical sites associated with the spy ring's operations, such as Raynham Hall and the Brewster House. The Culper Spy Ring was instrumental in gathering intelligence for General George Washington, including uncovering Benedict Arnold's plot. The North Shore Promotion Alliance will administer the trail in cooperation with the Secretary of the Interior, based on a specific map on file for public inspection.