Homeowners put on standby to evacuate wildfire

By the Associated Press | June 27, 2011 | 10:45 AM EDT

BOULDER, Colo. (AP) — About 100 firefighters are battling a wildfire that broke out in a canyon northwest of Boulder.

U.S. Forest Service spokeswoman Jackie Crosthwait says air tankers and helicopters are expected to resume dropping fire retardant on Monday.

Fire officials have put 340 homeowners on standby to evacuate. No structures were immediately threatened by the fire.

U.S. Forest Service spokeswoman Maribeth Pecotte says the fire is about four miles up the canyon, on Forest Service land.

Meanwhile, a southern Colorado wildfire that's been burning since June 12, is 80 percent contained after growing by about 100 acres on Sunday. The Duckett fire near Westcliffe is about 7-square miles in size.