20/07/2026
Mining Subsidence – Coocoran Public Safety Update
Miners at Coocoran have reported a number of areas of opal mining-related subsidence on the Lightning Ridge Area Opal Reserve.
LRAOR staff have been inspecting these sites, recording their locations and providing the NSW Legacy Mines Program with information on the extent of the subsidence, including its depth, area and associated public safety risks. Additional areas continue to be identified and documented.
As an interim public safety measure, LRAOR staff are installing hazard tape around identified subsidence areas to make them more visible and help reduce the risk to miners and visitors.
If you are aware of any subsidence or abandoned mine workings on the Reserve that may present a public safety risk, please contact the Lightning Ridge Area Opal Reserve so the location can be inspected and, where appropriate, reported to the NSW Legacy Mines Program.
Thanks to Darren McCarthy for showing us the sites and previously reporting some of them to the department.
Please keep clear of taped or fenced areas.
The Western Herald Roy Butler MP Walgett Shire Council Glengarry, Grawin, Sheepyard, Miners Association Inc. Lightning Ridge Miners' Association Primary Industries and Regional Development