National Park Service Study Act of 2012 - Directs the Secretary of the Interior to conduct special resource studies of: (1) the Kau coast, on the island of Hawaii; (2) on request, the island of Rota in the Commonwealth of the Northern Mariana Islands; (3) sites in Alaska associated with the forced abandonment of the Aleut villages of Makushin, Kashega, and Biorka around Unalaska Island and Attu on Attu Island during World War II; (4) the five relocation sites in Alaska at Funter Bay, Burnett Inlet, Killisnoo, Ward Lake and the Wrangell Institute; (5) specified World War II Japanese American Relocation Center sites; (6) American Latino sites in the San Luis Valley and Central Sangre de Cristo Mountains in Colorado and New Mexico; (7) the town of Goldfield and outlying mining sites in Nevada; (8) the Hudson River Valley in New York; (9) the Norman Studios in Jacksonville, Florida, where African-American casts and crews were used in the production of silent films; (10) the Mobile-Tensaw River Delta in Alabama; and (11) Galveston Bay in Texas.
Requires updates of: (1) the study authorized by the National Park Service Studies Act of 1999 relating to World War II sites, Republic of Palau; and (2) the 1979 study entitled "Vermejo Ranch, New Mexico/Colorado: Study of Management Options."
Directs the Secretary to: (1) study alternatives for commemorating and interpreting the role of the Buffalo Soldiers in the early years of the National Parks, (2) conduct a national historic landmark theme study to identify sites and resources in the southern United States that are significant to the Reconstruction era, and (3) study the feasibility of including 45 miles of the Chattahoochee River and land along the river corridor within the boundary of the Chattahoochee River National Recreation Area located in Georgia.