"We're travelling to Wellington because we want the Government to understand what closing Spring Creek will mean for the local community," he said.
"This isn't just about our jobs, it's about providing a future for Greymouth."
Mr Bolderson said their plan showed Spring Creek was viable but relied on Government funding "to get the mine through the next year or two".
"We're hoping to make them see that the economic and human cost of closing Spring Creek would be unconscionable."
Brian Lynch, an EPMU delegate at Huntly East, said his community faced long-term damage if the Government did not act.
"Solid Energy's proposal to cancel the Huntly East ventilation project is a very risky and short-term saving strategy that could force the mine to stop production within two years.
"There are hundreds of jobs at stake here and we'll be encouraging the Government to see the bigger picture."
The miners plan to arrive at Parliament at midday tomorrow and say they have had no confirmation that the Government will meet them.
The EPMU says the miners have paid for the trip through community donations and their own funds.