APM: 11 Location: SR 37 and US 101, Novato Overhead reassurance shield as SR 37 begins. 37 is the toll-free east-west route into Marin. APM: 14 Location: SR 37 and Harbor Dr, Marin Cty Reassurance shield after Harbor Dr as we prepare to head out of Marin. APM: SON/2 Location: SR 37 and Lakeville Hwy, Sonoma Cty A … Continue reading California State Route 37, US-101 to SR 121