Non‐periglacial stone stripes? An example from North Wales

A set of active stone stripes below a small debris cone in North Wales is described. In form they do not appear to resemble stone stripes described elsewhere. They are of particular note because their form is not controlled by conventional periglacial processes, but by stones moving downslope when sheep disturb the debris cone above. This downslope movement of stones has resulted in a complex pattern of stripes and horizontal terraces, the exact form of which appears to be controlled by probability. These observations add to the debate over the mode of formation of active stone stripes in Britain and the role of non‐periglacial processes.