Arthur, you might be able to get in touch with Christopher Nyerges. http://www.christophernyerges.com/ He will likely know people in San Francisco since he is a teacher of primitive skills and wild food gathering around the Los Angeles area.
_________________________
May set off to explore without any sense of direction or how to return.
WARNING & DISCLAIMER:
SELECT AND USE OUTDOORS AND SURVIVAL EQUIPMENT, SUPPLIES AND TECHNIQUES AT YOUR OWN RISK. Information posted
on this forum is not reviewed for accuracy and may not be reliable, use at your own risk. Please
review the full WARNING & DISCLAIMER about information on this
site.