The National Park Service has issued a list of the prospectuses it expects to issue by September 2015 for new concession contracts. The list, which includes operations at Denali, Canyon De Chelly, Petrified Forest, the National Mall and Olympic National Parks, among others, can be viewed at:
http://www.nps.gov/commercialservices/docs/news/Projected_Prospectus_Releases_FY15.pdf