The Codroy Valley Volunteer Fire Department received a call just after 1:20 a.m. Tuesday morning from a motorist on the Trans-Canada Highway.
The site has been closed for years, and has a locked gate at the entrance.
Fire Chief Brian Osmond said they had to break the lock off to enter.
Once inside, he said there was not one fire, but five.
“We tried using water and it wouldn’t work,” said Osmond.
He said members were able to keep it contained, but as they filled the truck back up and returned, the fire would be ignited again.
He made a call around 4 a.m. to a local contractor, who came with an excavator.
The excavator was able to douse the fire by burying it, and Osmond said it was around 8 a.m. before they were confident the fire was out.
Editor's Note: This version of the story corrects an earlier version which incorrectly stated the fire was reporter Monday morning.