Roman road historian Ivan Donald Margary said that the Long Causeway had a slightly different route in Roman times. In his book Roman Roads In Britain he said that evidence is now available that shows that after the Redmires Reservoir the Roman road did not follow the medieval route to Stanedge Pole but kept to the line of the present-day track to Stanedge Lodge. The Roman road then descended Stanage Edge half a mile north-west of the present route, on a narrow and steeper terrace. Batham Gate Road was assigned the Margary number RR710a.