Jim Urquhart | The Salt Lake Tribune - Smoke drifts south then back to the north as the Machine Gun wildfire burns in Herriman, Utah, Monday,September 20, 2010. Approximately 1,400 homes were evacuated ahead of the fire's path.

Jane Brown, left, and her husband Lynn Brown take more clothing from their home as the Machine Gun wildfire continues to burn in Herriman, Utah, Tuesday, Sept. 21, 2010. The 4,300 acre blaze destroyed three homes and forced the evacuation of 1,600 homes. (AP Photo/Jim Urquhart)

Jim Urquhart | The Salt Lake Tribune - A helicopter is used to drop water on the Machine Gun wildfire that burns in the foothills of Herriman, Utah, Monday,September 20, 2010. Approximately 1,400 homes were evacuated ahead of the fire's path.

Jim Urquhart | The Salt Lake Tribune - Horses stand next to a home destroyed by the Machine Gun wildfire on a private lane in the foothills of Herriman, Utah, Monday,September 20, 2010. Approximately 1,400 homes were evacuated ahead of the fire's path.

Jason Curry, public information officer with the Sanders Interagency Incident Management Team, walks past a home in Rose Canyon that escaped the flames of the Machine Gun wildfire in Herriman, Utah, Tuesday, September 21, 2010. The 3,500 acre blaze destroyed three homes and forced the evacuation of 1,600 homes. (AP Photo/Jim Urquhart)

A helicopter drops water on the Machine Gun wildfire in Herriman, Utah, Tuesday, Sept. 21, 2010. The 4,300 acre blaze destroyed three homes and forced the evacuation of 1,600 homes. (AP Photo/Jim Urquhart)

A fire crew monitors a back-burn in Rose Canyon that was set to combat the Machine Gun wildfire in Herriman, Utah, Tuesday, September 21, 2010. The 3,500 acre blaze destroyed three homes and forced the evacuation of 1,600 homes. (AP Photo/Jim Urquhart)