"Calaveras County" (Calaveras, CA; Produced by The Calaveras Chamber of Commerce), Undated, Sub-Series 2.1, Box: 21, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/10407 Accessed November 15, 2024.