The Ahwahnee Hotel is a grand hotel in Yosemite National Park, California, on the floor of Yosemite Valley, constructed from steel, stone, concrete, wood and glass, which opened in 1927. It is a premiere example of National Park Service rustic architecture, and was declared a National Historic Landmark in 1987. The hotel was built by two companies that were merged when the National Park Service began leasing concessions to a single concessionaire in 1925. The Curry Company, owned by David and Jennie Curry and the Yosemite Park Company, owners of the Yosemite Lodge, became the new "Yosemite Park & Curry Company headed by Donald Tressider. The structure originally served as both a luxury hotel and the company offices of YPC&CC.