In case you've not seen, REI in Phoenix-area is providing free 90 minute seminars on Sept. 19 & 20 7 pm at Paradise Valley and Tempe stores. Speaker is Gene Ward, who operates Survival & Outdoor Safety. Schedule on this page.

There are a couple in Southern CA various dates, July-Sept.

I have no personal experience or knowledge of the gentleman, other than what I read on his web site...but the price is right.