"Portola Expedition Camp"(PDF). Office of Historic Preservation, California State Parks. p. 7. Archived(PDF) from the original on 29 October 2022. Retrieved 28 February 2023.
"Bean Hollow SB". California State Parks. Archived from the original on 28 May 2010. Retrieved 2010-05-28.
"Portola Expedition Camp"(PDF). Office of Historic Preservation, California State Parks. p. 7. Archived(PDF) from the original on 29 October 2022. Retrieved 28 February 2023.