Silbury Hill, Nr Avebury, Wiltshire.
Reported 25th June.

A complex circle containing a design resembling an `egg timer` lozenge surrounded by variously sized rectangles with outer abutments. c 220 ft diameter overall.

A complex circle containing a design resembling an `egg timer` lozenge surrounded by variously sized rectangles with outer abutments. c 220 ft diameter overall.

A complex circle containing a design resembling an `egg timer` lozenge surrounded by variously sized rectangles with outer abutments. c 220 ft diameter overall.

A complex circle containing a design resembling an `egg timer` lozenge surrounded by variously sized rectangles with outer abutments. c 220 ft diameter overall.