Field Trips

Chairman's Association 

"CO-OP"

 In 1972, several Rock and Gem Societies came together with the objective of organizing and sharing field trips with each other. All member societies are located in Northern California.

 Welcome to the Cooperative Field Trip Chairmen Association's web site!

"CO-OP"

HOSTING GREAT FIELD TRIPS SINCE 1972! 2022 WAS OUR 50th ANNIVERSARY!

The Cooperative Field Trip Chairmen's Association was established in 1972. It currently has 10 Member Clubs

located in Northern California. The CO-OP is a member of the California Federation of Mineralogical Societies (CFMS)

Each society hosts one or more field trip a year. Our annual seminar is in March with an educational speaker and a

luncheon. We have a live auction with donated rocks, minerals and unrelated items. This is our main fund raiser.