26k with 290m ascent
Outward on OAR from Ashendon, Chearsley, Haddenham, Aston Stanford
Returning via Ford, Dinton, Cuddington, Nether Winchendon & Ashendon to return to cars
You can use the interactive controls to zoom in and out and to move around the map, or click on a marker for more info. (interactive map help)