No trace of missing California teen MORGAN HILL, Calif., March 25 (UPI) -- Search-and-rescue teams canvassed a 12-mile radius in California but found no traces of 15-year-old Sierra LaMar, who has been missing since March 16. Authorities from Santa Clara, Marin, Alameda, San Mateo and Santa Cruz counties searched the Bay area from the San Jose-Morgan Hill border to Hecker Pass near Gilroy Saturday, said Sgt. Jose Cardoza, spokesman for the Santa Clara County Sheriff's Office. "We expanded our search," Cardoza told the San Jose Mercury News. This is the most personnel we've used and the farthest we've gone. The Fremont teen was last seen the morning of March 16, when she left home to catch a school bus to Washington High School. LaMar sent a text message to a friend at 7:11 a.m. on her way to the bus stop but never reached the school, the sheriff's office said. Investigators found LaMar's bag March 18 in Morgan Hill, where she lived until October when her family moved to Fremont. One day earlier, the teen's cellphone was discovered about a mile south of the bag.