"Calaveras County Map" (Calaveras, CA: Produced by Harry Freese, County and State Map Publisher), 1969, Sub-Series 1.1, Box: 1, Folder: 5. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6667 Accessed November 15, 2024.