1982 Humboldt County

    Here is the guidebook for the 1982 Pacific Cell Friends of the Pleistocene Field Conference Trip to Humboldt County.

    This guidebook was made available to us by Janet Sowers and Donald Wells, who were cleaning out the Lettis office in March 2025. Thank you!

    Late Cenozoic History and Forest Geomorphology of Humboldt County, California.

  • Guidebook (390 MB pdf)