Mammoth plate photographs of Yosemite Valley and Mariposa Grove taken by Carleton Watkins during multiple trips, and printed between 1861 and 1881.

All requests to reproduce, publish, quote from or otherwise use collection materials must be submitted in writing to the Director of Library and Archives, North Baker Research Library, California Historical Society, 678 Mission Street, San Francisco, CA 94105. Consent is given on behalf of the California Historical Society as the owner of the physical items and is not intended to include or imply permission from the copyright owner. Such permission must be obtained from the copyright owner. Restrictions also apply to digital representations of the original materials. Use of digital files is restricted to research and educational purposes.

Access is restricted because of the rarity and fragility of the images; consult repository for details.