Here in Idaho, lots of trail heads have those ramps. They just built a fancy new one in a campground where we hunt quite often.
I don't see too many people hauling horses in pickups any more. Most pickups can't handle the weight, then or now. They use either 1 tons (the best solution of all) or trailers. It seems like many of the current line of trailers cost more than the truck pulling it.
There are quite a few old pickup stock racks lying around in back pastures.
