"Chart of Sacramento River...Sacramento to Four Mile Bend to Colusa" (Sacramento, CA: Produced by Triumph Press, Inc.), 1972, Sub-Series 1.4, Box: 8, Folder: 1. Collection of California maps and guidebooks, SC-012. Pfau Library Special Collections. https://archivesspace.csusb.edu//repositories/3/archival_objects/6860 Accessed November 15, 2024.