(Salt Lake City-AP) -- More than 500 firefighters from all over the country are battling the Square Complex Fire about 14 miles north of St. George.
The U-S Bureau of Land Management says the blaze has charred about 16-thousand acres so far and it's threatening several unoccupied cabins.
Firefighters will get help today from four firefighting helicopters, three single-engine air tankers and about 17 engines.
Yesterday, strong winds hampered firefighters' efforts. B-L-M officials say today the conditions are more favorable with overcast skies and higher humidity, but that could change by this afternoon.
They expect it to take at least four more days before the fire is contained.
The blaze was started Friday by lightning.
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