"Big South Fork" (Big South Fork, CA: Produced by National Park Service U.S. Department of the Interior), 2009, Sub-Series 1.1, Box: 1, Folder: 4. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6657 Accessed November 15, 2024.