This is a comprehensive, well-illustrated history of Yosemite Valley and the Mariposa Grove of Big Trees, the result of a multi-year research project. The informative work provides in-depth treatment of important historical figures, including hotelkeepers, guardians, trail and road builders, and commissioners, plus extensive coverage of hotels and businesses that operated between 1856 and 1906. The story of the State of California's governance of the grant also is detailed, from creation to the steps that receded Yosemite Valley to the control of the federal government.