APM: 18 Location: SR 99 and SR 4, Stockton Just as SR 4 joins SR 99, it will prepare to split. APM: 17 Location: SR 99 and Golden Gate Ave, Stockton Follow 4 east for Angels Camp. APM: 17 Location: SR 99 and Golden Gate Ave, Stockton Exit for SR 4 east.  S to SR 99 Bus, N … Continue reading California State Route 99, SR 4 to SR 4