Nova Scotia fire crews have contained three blazes on the mainland, as dry conditions continue to plague the province.

The fires continue to burn in Cumberland, Lunenburg and Hants counties. Jim Rudderham, the province's supervisor of wildfire management, said current weather conditions make it difficult to know when the fires will be out.

"It's very dry and the ground is also very dry and some of these fires can burn quite deep," he said.

"So that's something that the crews will monitor for quite some time to make sure nothing pops up. Once they believe the fire is out they'll still patrol it after the fact because, when it's hot, fire burns down, as well."

No danger to houses

The largest of the fires is in Fenwick, about seven kilometres outside Amherst.

Fire crews put a line around the fire Monday night and so far it has held. About 20 Natural Resources staff members and 30 volunteer firefighters and vehicles are on the scene. J.D. Irving is also contributing heavy equipment to the cause.

The fire is approximately 12 hectares. Rudderham said no homes in the area are in danger.

Smaller fires well in hand

A fire in Aldersville, close to Wallebeck Lake in Lunenburg County, is now being treated for hotspots and is presenting no concerns, according to a department spokesman. That fire remains less than one hectare in size.

The third fire, at a bog near Clarksville in Hants County, is less than ½ a hectare in size. Crews are setting up sprinklers to soak the fire and will continue to patrol through the day.

Rudderham said this level of activity is normal for the time of year and there are more than enough resources to meet the need. Natural Resources helicopters dropped water on the fires in Cumberland County and Lunenburg County on Monday.

He encouraged the public to be careful of anything that could start a wildfire. People should consult the safe burn line each day before starting a camp fire, he said.

The cause of all three fires is still being investigated and no injuries have been reported.