To amend the National Trails System Act to provide for the study and designation of the Underground Railroad Historic Trail.

Directs the Secretary of the Interior, acting through the Director of the National Park Service, to study alternatives for commemorating and interpreting the Underground Railroad (the route taken by escaping slaves before conclusion of the Civil War). Includes in such study: (1) consideration of establishing a new unit within the national park system; and (2) consideration of various...