HO gauge switching layout: Shenandoah Valley

[Prairie Trains]

That's shaping up nicely mate. A suggestion if I may re. bumpers. I don't think they would be placed right on the end of the track. Something like 4 to 6 feet would be better. That way, if they get hit, they would tend to slide instead of going off the end into the ground. I may be wrong of course. Can any one advise?

The stops where bolted to the rails and if they where hit hard enough they would take the rails with them. So yes they are in the right place.