Found it in "Volcano Gold". Will try to transport it to a new county. Was thinking about Placer County where I work, but I can't tell if it has already been there or not. The hole for the keychain goes right through the "Pacer" (should be Placer) check box. I'll see if I can use the log or the mini-county map to figure it out.
Note: nice map of counties in California can be found at: http://quickfacts.census.gov/qfd/maps/california_map.html
Counties visited so far:
Alameda
Contra Costa
Merced
Monterey
San Mateo
Santa Clara
Santa Cruz
Solano
Sonoma
Tuolumne
Yolo
San Diego
Riverside
San Bernadino
Imperial
Amador
San Juaquin
Sacramento
Stanislaus
El Dorado