Stuart and Floss "negotiating"Hadrian's Wall.The line of the Roman Wall is shown by the modern wall rising to the skyline.Interestingly,the crude back seat on the quad,is made specifically for the dog to ride on.As the farmers' can be out for several hours at a time,the dogs can't keep up with the quad and so become exhausted,so they ride on the quad to wherever the work rquires their special skills.