Fire officials say the 3400 hectares (8400 acres) fire in the Sandilands Provincial Forest, was "human started." It stretches 11 km long and 3 km wide, between Woodridge and Marchand.
On Sunday fire officials confirmed it started near an ATV trail in the forest. There were around 800 ATVs in the forest Saturday afternoon as part of a local poker derby.
The fire started around 1:00 p.m. and raced through the pine forest, which officials say was tinder dry.
One resident of the nearby town of Sandilands told CTV News there was a rush of derby participants driving by his house at around 6:00 p.m. Saturday. They were trying to leave the area on a gravel road, after RCMP had closed Highway 210. The highway was re-opened Sunday morning.
All four of Manitoba's water bombers were attacking the blaze Saturday, and Ontario had sent in two of their bombers to help as well.
Five millimetres of rain helped slow down the fire's progression over night, but Sunday morning there were still around 100 firefighters working on the ground to contain the blaze. Seven bulldozers were working to cut a fire line, and two water bombers as well as several helicopters with water buckets, were also working to knock it down.
Conservation officials say the fire is no longer spreading, but is still considered out of control as they try to put out hot spots.
So far fire officials say there have been no fire related injuries or property damages.
They expect to be fighting the fire for at least a week.
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