APM: 5 Location: Preston Ave and Plymouth Hwy, Ione Reassurance shield as 124 joins 104. The two routes turn left at the stop sign ahead. APM: 5 Location: Main St and Church St, Ione Just after turning left, we’ll enter downtown Ione. Turn right here for SR 124 west. Turn right in a block for SR … Continue reading California State Route 124, SR 104 to SR 104