start on tadcaster to sherburn in elmet road (a162) adjacent to last slatted fence post 20 yards south of entrance to scottish courage brewery. proceed south through towton and bakston ash to traffic island at north end of sherburn by-pass (5.228 miles). encirlce island and retrace to finish at southern end of field gateway, opposite grass triangle formed by a162 and sliproad from a64 (10.000).