To establish the John H. Chafee Blackstone River Valley National Historical Park, and for other purposes.

John H. Chafee Blackstone River Valley National Historical Park Establishment Act - Establishes the John H. Chafee Blackstone River Valley National Historical Park in the states of Massachusetts and Rhode Island as a unit of the National Park System. Requires the Secretary of the Interior, through the National Park Service (NPS), to prepare a general management plan for the Park....