APM: 35 Location: US 101 and Avenue of the Giants, Humboldt Cty Reassurance shield after the last Avenue of the Giants interchange. APM: 33 Location: US 101 and Newton Rd, Humboldt Cty Reassurance shield after the Newton Rd interchange. A few miles later, there’s another relatively unmarked interchange for SR 254 as it passes through Myers Flat. … Continue reading U.S. Route 101, SR 254 to SR 254