APM: 5 Location: US 101 and Tiburon Blvd, Marin Cty Reassurance shield after the 131 interchange. APM: 5 Location: US 101 and Tiburon Blvd, Marin Cty After Tiburon Blvd, we’re a mile from the SR 1 north interchange. APM: 4 Location: US 101 and Seminary Dr, Marin Cty 3/4 of a mile to SR 1. APM: 4 Location: US … Continue reading U.S. Route 101, SR 131 to SR 1