Sparks from a grinder being operated are believed to have started a fire which burnt 10 hectares of paddocks and came close to two buildings at Forest Reefs on Saturday.
Rural Fire Services Canobolas Zone member services co-ordinator Nils Waite said 12 units from six brigades attended the blaze off Forest Reefs Road, Forest Reefs, from 2.10pm.
"A local landowner decided to do some grinding, so that set a grass fire running," he said.
Mr Waite said the fire went around the landowner's house and set a derelict building "full of blackberries" alight.
He said crews left around 8pm but one brigade returned at 4.15am on Sunday when some trees on the property re-ignited.
The trees were extinguished.
Mr Waite said it was not a total fire ban day and using a grinder was not banned on total fire ban days.
However, he said people needed to realise the ground was extremely dry and the fire risk was high.
Crews from the Spring Hill-Huntley, Springside, Panuara, Tallwood, North West and Orange brigades attended the fire.
Mr Waite said it had been a busy day with crews attending other incidents in the region.
He said crews were continuing to patrol a fire on Kerrs Creek Road at Beetle Hill, Mullions Range which burnt seven hectares of forest last week in case of any flare-ups.
On Sunday six units from the Lucknow, Byng and Orange rural fire brigades attended a small fire off Icely Road at Emu Swamp.
Mr Waite said crews arrived at 12.40pm after a fuse had blown on an electricity pole sparking a one hectare farmland fire.
He said it was contained within an hour.
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