"Big Basin Redwoods State Park" (Sacramento, CA; Produced by The Resource Agency Department of Parks & Recreation), 1969, Sub-Series 2.4, Box: 21, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/10275 Accessed November 15, 2024.