Other subject interests include business and the local economy, agriculture, transportation, forestry, mining, health care, recreation, tourism, historic preservation, oral history, and genealogy. The rich visual heritage of northeastern California is documented in over 18,000 historical photographs , many dating from the nineteenth century and representing a wide variety of early photographic processes. This extensive c ollection is a result of gifts and loans from individuals, historical organizations, as well as public and private agencies. All of the images are cataloged and indexed so that patrons may access photographs by geographic location, subject, personal names, or photographer of origin. The Photograph Index is available in the department.
Reproductions are available for a fee.
Historical Map Collection Several hundred rare and historical maps of the region are housed in Special Collections. These maps have been given careful treatment and are encapsulated for protection and extended use. They have been identified as a part of the Northeastern California Collection and as such, may be found on the online catalog. Additional maps can be found using the guide, Maps in the Special Collections Department, which is available in the department. The manuscript collection contains unpublished personal and corporate papers which contain correspondence, diaries, and other documents providing scholars primary source material related to the 12 counties of northeastern California.