Black Hills Cemetery Act - Directs the Secretary of Agriculture (USDA) to convey, to the local communities in South Dakota that are currently managing specified community cemeteries, all interest of the United States in: (1) the parcels of National Forest System land that contain the cemeteries, and (2) up to an additional two acres adjoining each cemetery to ensure that such conveyances include unmarked gravesites and allow for the expansion of those cemeteries.