Kestrel will open its doors on October 17 with the day including site tours and activities for children.
Kestrel operations general manager Tony Lennox said in RTCA’s Mine Matters newsletter that the open day was a chance for the mine to interact with the Emerald community.
"By opening our mine to the community, which includes our employees and their families, we are able to build our community presence and provide some fun and educational activities," he said.
"But more importantly, we're able to highlight the fantastic work our employees do to constantly improve our safety record, our operation and our output."
The Kestrel mine extension is on track to produce first coal in 2012.
The project aims to lift production to 5.7 million tonnes per annum from 2012, extend the mine life to 2031, increase the longwall face width to 375m and create up to 250 jobs in the construction process.