Mystery disk siting at on property called BUNGALOW Aust. 11 miles out of Boggabri.

Siting was noticed by tractor when plowing heavy black soil in center of paddock in preparation for sowing wheat. Size of circular disk aprox 7' diameter. Sharp cylendrical holes 45 degrees about 22inches deep with one cone shape hole in cente about 12 inches deep. This soil when dry is cement hard and no irrigational or farm tool could be capable of making such a hole which appears glazed glasslike smooth inside. The photos of these holes were made 7 days after siting after heavy rain had caused crumbling of the soil around edges of the disk area. Other sitings were seen up in Tully, Queensland Australia.
Date of event may be approximate, although the witness does not indicate that fact.  We have requested confirmation of the date, and the witness forwarded photos and a newspaper article about the event.  PD