AMP: Fort Stevens Spur #485/4 Location: Alt US-101 and OR 104, Warrenton No reassurance shield as Oregon 104S begins. Curiously, Warrenton signs 104S as “Alt US-101” on streetblades. AMP: 5 Location: Alt US-101 and Ensign Ln, Warrenton Less than a mile later, turn right to stay on 104S to US-101. AMP: 5 Location: Ensign Ln and US-101, Warrenton … Continue reading Oregon Route 104 Spur, OR 104 to US-101