Mine Subsidence HEZ 2011
The accompanying photo was taken on September 3rd 2011 in the Hunter Employment Zone (HEZ). The Tomalpin Mine Subsidence District (map below courtesy of Mine Subsidence Board) was declared soon after the HEZ was rezoned.
Mine subsidence is only one of the many constraints on the industrial land. The site lacks easy access and contains nationallly significant biodiversity values.
This particular hole was relatively small on the surface but appeared to go directly into a mine shaft.