APM: 4 Location: SR 128 and Cloverdale Blvd, Sonoma Cty Reassurance shield after the 101 Business split. APM: 49 Location: SR 128 and Cooper Rd, Mendocino Cty 49 miles to SR 1 as we enter Mendocino County. APM: 41 Location: SR 128 and Elkhorn Rd, Yorkville, Mendocino Cty A few miles later we’ll pass through unincorporated Yorkville. APM: 40 … Continue reading California State Route 128, US-101 Bus/SR 128 Bus to SR 253