Harriet Tubman National Historical Parks Act - Establishes in Caroline, Dorchester, and Talbot Counties, Maryland, the Harriet Tubman Underground Railroad National Historical Park as a unit of the National Park System.
Establishes in Auburn, New York, the Harriet Tubman National Historical Park also as a unit of the National Park System.
Authorizes the Secretary of the Interior to enter into cooperative agreements with certain entities for the historic preservation, restoration, interpretation, and maintenance of such historical parks. Requires the Secretary to complete a general management plan for them.