| Vallejo Gem & Mineral Society | Founded: | 1957 |
| Mailing Address: | P.O. Box 706, Vallejo, CA 94590 |
| Meeting Place: | Civic Bldg. Solano Co. Fairgrounds, Vallejo, CA |
| Day of Meeting: | 2nd Thursday, 7:30 p.m. |
| Bulletin: | Solano Chieftain |
| Juniors | Yes |
| Membership | 35 |
| Phone/e-mail: | (707) 644-9764 / vgms@ncal.verio.com |
| Valley Prospectors Web Page | Founded: | 1976 |
| Mailing Address: | P.O. Box 2923, San Bernardino, CA 92406-2923 |
| Meeting Place: | K. of C. Hall, 1729 E. Baseline, San Bernardino, CA |
| Day of Meeting: | Last Thursday, 7:00 p.m. |
| Bulletin: | Drywasher's Gazette (bplarue@earthlink.com) |
| Juniors | No |
| Membership | 410 |
| Phone/e-mail: | (909) 874-5664 / bplarue@earthlink.com |
| Ventura Gem & Mineral Society http://www.vgms.org/ | Founded: | 1946 |
| Mailing Address: | P.O. Box 1573, Ventura, CA 93002 |
| Meeting Place: | Ventura Senior Recreation Center, 420 E. Santa Clara Street, Ventura, CA. |
| Day of Meeting: | fourth Wednesday, 7:00 p.m. |
| Bulletin: | Rockhound Rambling |
| Juniors | Yes |
| Membership | 52 |
| phone / e-mail: | (805) 642-3155 / jns@west.net |
| Victor Valley Gem & Mineral Club | Founded: | 1947 |
| Mailing Address: | 15056B 7th St., Victorville, CA 92392-3811 |
| Meeting Place: | 15056B 7th St., Victorville, CA |
| Day of Meeting: | 4th Tuesday, 6:30 p.m. |
| Bulletin: | The Bulletin |
| Juniors | Yes |
| Membership | 67 |
| phone/e-mail: | Carole McMichael (Federation Director) / (760) 961-7653 |
| phone/e-mail: | Tom Laszlo (President) / (760) 243-2330 |
| Vista Gem & Mineral Society | Founded: | 1959 |
| Mailing Address: | P.O. Box 1641, Vista, CA 92805 |
| Meeting Place: | 1400B Vale Terrace, Vista, CA |
| Day of Meeting: | 3rd Thursday, 7:00 p.m. |
| Bulletin: | The Rockorder |
| Juniors | Yes |
| Membership | 79 |
| phone / e-mail: | (760) 758-4599 |
| West Coast Prospectors & Treasure Hunters Association | Founded: |
| Mailing Address: | P.O. Box 2706, Orange, CA 92859 |
| Meeting Place: | Garden Grove Women's Club, 9501 Chapman Ave., Garden Grove |
| Day of Meeting: | 2nd Wednesday, 7:30 p.m. |
| Bulletin: | |
| Juniors | |
| Membership | 94 |
| e-mail: | |
| Westend Prospectors | Founded: | 1982 |
| Mailing Address: | P.O. Box 87, Norco, CA 92860-0087 |
| Meeting Place: | Community Center, 3900 Hammer Ave., Norco, CA |
| Day of Meeting: | 1st Tuesday, 7:30 p.m. |
| Bulletin: | |
| Juniors | No |
| Membership | 173 |
| e-mail: | (951) 600-0238 / TimK@Aerosurf.net |
| Whittier Gem & Mineral Society, Inc. | Founded: | 1949 |
| Mailing Address: | P.O. Box 865, Whittier, CA 90608-0865 |
| Meeting Place: | Whittier Community Center, 7630 Washington Ave., Whittier, CA |
| Day of Meeting: | 4th Thursday, 7:30 p.m., 3rd Thursday in November and December No meetings in July and August |
| Bulletin: | Rockhounder res19pnp@verizon.net |
| Juniors | Yes |
| Membership | 60 |
| Phone/e-mail: | (626) 934-9764 / res19pnp@verizon.net |
| Willits Gem & Mineral Club | Founded: | 1965 |
| Mailing Address: | 4500 Canyon Rd., Willits, CA 95490 |
| Meeting Place: | Shirley Streeters residence |
| Day of Meeting: | 3rd Sunday, 2:30 p.m. |
| Bulletin: | |
| Juniors | Yes |
| Membership | 8 |
| phone / e-mail: | (707) 459-2534 |
| Woodland Hills Rock Chippers Web Page | Founded: | 1962 |
| Mailing Address: | P.O. Box 205, Woodland Hills, CA 91365 |
| Meeting Place: | Community Center, 7248 Owensmouth Ave., Canoga Park, CA |
| Day of Meeting: | 3rd Saturday, 7:30 p.m. (except Aug) |
| Bulletin: | Rock Chippings / David Dills FromMotherEarth@aol.com |
| Juniors | Yes |
| Membership | 39 |
| Phone/e-mail: | (818) 774-0900 / info@rockchippers.org |
| Yucaipa Valley Gem & Mineral Society Web Page | Founded: | 1960 |
| Mailing Address: | P.O. Box 494, Yucaipa, CA 92399 |
| Meeting Place: | Mousley Museum of Natural History, 35308 Panorama Drive, Yucaipa, CA |
| Day of Meeting: | 2nd Thursday, 7:00 p.m. (excluding December) |
| Bulletin: | Green Valley Rocker |
| Juniors | Welcomed but not officially organized |
| Membership | 125 |
| Phone / e-mail: | (909) 238-8143 / hcobb@get.net |
| Member e-mail: | (909) 795-2540 / yucaipagem@verizon.net |