Sanborn Fire Insurance Co. maps

From 1867 to 1950, the Sanborn Fire Insurance Company produced detailed maps of structures in urban areas, which in Santa Cruz County first included Santa Cruz (1877) and Watsonville (1886); and later Capitola, Soquel, Ben Lomond, and Boulder Creek. Copies of most of the maps are available at SCPL. Some have been digitized by UCSC, and are available online with a UCSC ID. Some are also digitized and available online from the Library of Congress.