Caption: CP 5464 and 5912 doubleheader leaving Revelstoke with a westbound freight. The engine on the left was an R-class. They ran helpers west of Revelstoke a short distance to Three Valley or near there. That was as far west as the selkirk engines were allowed to run. They say the bridges west of there could not handle the weight of them. When I was with the Engineering department at BC Rail, I ran the axle loadings of a selkirk through the Coopers bridge loading program. I think it came out to Coopers E-65 on some of the shorter spans.