GeoGraph - photograph every grid square

Lynchet: An artificial bank formed by a build up or loss of soil against a field boundary, or deliberately produced as the downslope edge of a cultivation terrace on a slope. Lynchets are usually found running along slopes and accumulate soil upslope, derived from downward movement of soil after ploughing, which is trapped by the boundary. They also lose soil downslope where ploughing cuts into the slope. Where a boundary has later been removed, a lynchet is often the main surviving evidence that a wall or hedge once existed. Those forming cultivation terraces often appear in groups and date from the medieval period and once lay within strip fields.