Signs From California

CA-37 west at Hanna Ranch Road exit. Approaching US-101. Use US-101 north for Santa Rosa and Eureka. Use US-101 south for San Rafael and San Francisco.

CA-37 west at Black Point/Atherton Ave. interchange

CA-37 west at CA-121

CA-37 west to San Rafael approaching CA-121 north to Sonoma and the Infineon Raceway.

CA-37 - San Rafael overhead on CA-37 west.

CA-37 west at Exit 17 - Mare Island.

CA-37 west at Exit 18 - Wilson Ave./Sacramento St. Approaching Exit 17 - Mare Island.

CA-37 west at Exit 19 - CA-29/Napa/Sonoma Blvd. Approaching Exit 18 - Wilson Ave./Sacramento St. CA-37 continues west towards San Rafael.

CA-37 west approaching Exit 20 - Discovery Kingdom/Fairgrounds Drive. Use Exit 20 for the Six Flags Discovery Kingdom theme park.

I-80 west at Exit 33 - CA-37/Novato/San Rafael. CA-37 crosses the north end of San Pablo Bay, connecting US-101 (Novato) and I-80 (Vallejo).