A roadshow to Tomingley, Narromine, Peak Hill and possibly Dubbo is in the planning as construction begins on the site of the Tomingley Gold Project about 50 kilometres south-west of Dubbo.

Deputy Premier Andrew Stoner came to Dubbo yesterday with advice Alkane Resources has been waiting on since the project received development approval in late July 2012.

In company with NSW Resources Minister Chris Hartcher and Dubbo MP Troy Grant, he announced a mining lease had been granted and the project costing $116 million would get off the ground.

The response of the board of Alkane Resources, which owns 100 per cent of Tomingley Gold Operations, was to order the immediate start of construction.

Yesterday morning Alkane Resources' general manager NSW, Dubbo-based Michael Sutherland, said immediately meant "this afternoon".

It is 11 years since gold was found at the mine site that across seven to 10 years will utilise open-cut and underground methods of extracting valuable ore.

Mr Sutherland said three open-cut mines would be built and operating sooner rather then later.

"We'll have to start mining, probably towards the end of June, in order to produce material that can actually feed through the plant," he said post-announcement on the rooftop of the Dubbo RSL Memorial Club.

"The whole construction process will take about 11 months, but obviously you've got to have some ore to feed into the plant to see whether it actually works."

Alkane Resources has appointed Mintrex Pty Limited to prepare the tender documents and manage the construction phase.

Already Aquawest of Dubbo and Neill Earthmoving of Nyngan have been put to work on a 46-kilometre water pipeline between Narromine and Tomingley, and the access road to the mine site, respectively.

Mr Sutherland said the majority of up to 140 jobs in the construction phase and 120 jobs in the production phase would be filled by "local" people. He said the roadshow would help find production staff, with and without existing mining skills.

"I envisage there might be only half-a-dozen new families move to Dubbo, Narromine or Peak Hill to work for Alkane," the general manager said.

"We're not bringing in a whole lot of people from outside."

The Tomingley Gold Project management team currently consists of an operations manager and senior mining engineer, but by March is expected to include an occupational, health and safety officer, processing manager and financial officer.

Advice yesterday from the Australian Securities Exchange was of an "anticipated improved gold production of 380,000 ounces" at Tomingley across seven years, generating earnings before interest, taxes, depreciation, and amortization of A$217 million. Mr Sutherland said the government must approve a mine operations plan before "we can physically start mining".

"We've already prepared the document and will include the mining lease number," he said.

"Today ticks that big box."