June 13 - CN Port Huron

At Port Huron's Amtrak station, we see a CN mixed freight come off the Port Huron-Chicago line and enter the St. Clair River international tunnel. CN #8897 (EMD SD 70M) and CN #5655 (EMD SD 75I) leave the Port Huron yard and slowly approaches the signal from the distance.

 Then, the train comes to a halt and turns off its lights. About a minute later, the automatic switch is pulled and the train turns its lights on and starts moving to the tunnel.