APM: 0 Location: SR 20 and SR 1, Mendocino Cty As SR 20 begins we’re 33 miles from US 101. APM: 1 Location: SR 20 and Old Willits Rd, Mendocino Cty Reassurance shield as 20 begins. APM: 8 Location: SR 20 and Little Lake Rd, Mendocino Cty 24 miles to US 101. APM: 14 Location: SR 20 and Rd … Continue reading California State Route 20, SR 1 to US-101