Archives, historical societies, and local libraries can be excellent sources of primary research materials in landscape architecture. To locate materials in libraries not listed in the Melvyl catalog, use WorldCat - UC Only. Some of these materials will be available via the Interlibrary Borrowing Service.
Municipal archives: Municipal archives can be a fabulous source of primary research material. Many cities, counties, etc., maintain archives of historical municipal records, ranging from meeting and office records to maps, vital records, photographs, plans, parks and recreation planning, and much more. These archives are managed in diverse ways: as a separate department, as a function within an individual department, as part of the public library, etc.
UC Berkeley Libraries
Special Libraries: Here is a selection of California landscape, horticultural, or gardening libraries. See also Libweb for a list of California public, academic, and special libraries