Wind Cave National Park Boundary Revision Act of 2005 - Authorizes the Secretary of the Interior to acquire specified land or interests for addition to the Wind Cave National Park in South Dakota. Requires the Park's boundaries to be adjusted to reflect the acquisition of land.
Requires the Secretary to: (1) administer acquired land as part of the Park; and (2) transfer administrative jurisdiction over the land from the Director of the Bureau of Land Management to the Director of the National Park Service.
Allows the continuation of livestock grazing on such land at the level existing on the date on which it is acquired.