APM: 2 Location: SR 221 and Imola Ave, Napa No reassurance shield as SR 221 begins. APM: 0 Location: SR 221 and SR 12, Napa Cty A couple miles later we’ll approach SRs 12 and 29. APM: 0 Location: SR 221 and SR 12, Napa Cty It is recommended to follow 29 south (instead of 12 east) … Continue reading California State Route 221, SR 121 to SR 12/SR 29