PICTURES

US firefighters step up battle against Idaho blaze; resort towns menaced

Firefighters start a back burn along the Pine-Featherville Road while battling the more than 90,000-acre Elk Complex Fire near Pine on Monday Aug 12, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has
Firefighters start a back burn along the Pine-Featherville Road while battling the more than 90,000-acre Elk Complex Fire near Pine on Monday Aug 12, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- FILE PHOTO: AP
Members of the Mountain Home Fire Department fill a water reservoir called a pumpkin, with 1,800 gallons of water on Monday, Aug 12, 2013, as they prepare to defend homes from the more than 80,000-acre Elk Complex Fire burning near Pine, Idaho. Firef
Members of the Mountain Home Fire Department fill a water reservoir called a pumpkin, with 1,800 gallons of water on Monday, Aug 12, 2013, as they prepare to defend homes from the more than 80,000-acre Elk Complex Fire burning near Pine, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- FILE PHOTO: AP
In this Wednesday, Aug 13, 2013 photo, burnt cattle carcasses lie on the ground on Bill Corlett's property north-west of Fairfield, Idaho. Corlett lost 100 cattle during an Aug 8 wildfire. Firefighters mounted on Sunday an all-out ground and air atta
In this Wednesday, Aug 13, 2013 photo, burnt cattle carcasses lie on the ground on Bill Corlett's property north-west of Fairfield, Idaho. Corlett lost 100 cattle during an Aug 8 wildfire. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- FILE PHOTO: AP
Firefighters light a back burn near Pine, Idaho while fighting the Elk fire Wednesday Aug. 14, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatene
Firefighters light a back burn near Pine, Idaho while fighting the Elk fire Wednesday Aug. 14, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- FILE PHOTO: AP
Firefighters light a back burn near Pine, Idaho while fighting the Elk fire Wednesday Aug 14, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened
Firefighters light a back burn near Pine, Idaho while fighting the Elk fire Wednesday Aug 14, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- FIE PHOTO: AP
Helicopters battle the 64,000 acre Beaver Creek Fire on Friday, Aug 16, 2013 north of Hailey, Idaho. A number of residential neighbourhoods have been evacuated because of the blaze. Firefighters mounted on Sunday an all-out ground and air attack on a
Helicopters battle the 64,000 acre Beaver Creek Fire on Friday, Aug 16, 2013 north of Hailey, Idaho. A number of residential neighbourhoods have been evacuated because of the blaze. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- PHOTO: AP
Taylor Ashliman, 6, and her family friend Kim Hayes wear respiratory masks to protect themselves from the smoke as they walk along Main Street in Hailey, Idaho, near the Beaver Creek wildfire Aug 18, 2013. Firefighters mounted on Sunday an all-out gr
Taylor Ashliman, 6, and her family friend Kim Hayes wear respiratory masks to protect themselves from the smoke as they walk along Main Street in Hailey, Idaho, near the Beaver Creek wildfire Aug 18, 2013. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- PHOTO: REUTERS
A helicopter makes a drop on a dozer line around a home to protect it from the Beaver Creek Fire on Sunday, Aug 18, 2013 in outside of Ketchum, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has force
A helicopter makes a drop on a dozer line around a home to protect it from the Beaver Creek Fire on Sunday, Aug 18, 2013 in outside of Ketchum, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- PHOTO: AP
A helicopter prepares to make a drop while a VLAT flies in to battle the Beaver Creek Fire on Saturday, Aug 17, 2013 west of Hailey, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacu
A helicopter prepares to make a drop while a VLAT flies in to battle the Beaver Creek Fire on Saturday, Aug 17, 2013 west of Hailey, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- PHOTO: AP
A helicopter makes a drop while battling the Beaver Creek Fire on Saturday, Aug 17, 2013 north of Hailey, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes a
A helicopter makes a drop while battling the Beaver Creek Fire on Saturday, Aug 17, 2013 north of Hailey, Idaho. Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay. -- PHOTO: AP

SALMON, Idaho (REUTERS) - Firefighters mounted on Sunday an all-out ground and air attack on an Idaho wildfire that has forced the evacuation of some 2,250 homes and threatened the world-class ski resort of Sun Valley, where snow-making water cannons were used to keep the flames at bay.

The fire raging across parched sagebrush, grasslands and pine forests near high-end developments in the Sun Valley area has consumed 101,000 acres (41,000 hectares) and destroyed one home and seven other buildings since lightning sparked the blaze on Aug 7.

More than 1,000 firefighters were engaged in what fire officials called "a heavy air show" and ground assault in a drive to gain the upper hand over a blaze stoked by dry, hot weather and strong, gusting winds.

"Every fire has a personality, and this fire has an angry personality," said Beth Lund, incident commander with the U.S.

Forest Service team managing the blaze in central Idaho.

Airplane tankers dumping payloads of fire retardant and helicopters dropping water bolstered the fight on Sunday to protect the 5,128 residences, 1,399 commercial properties and 3,729 outbuildings threatened by the fire.

For the first time since the so-called Beaver Creek blaze erupted, weather conditions on Sunday turned in favor of the firefighters.

A rise in humidity levels overnight paired with calmer winds gave crews an edge in efforts to subdue flames that have advanced on affluent neighborhoods around the tourist town of Hailey and resort communities of Ketchum and Sun Valley to the north.

Authorities have put the value of land and property threatened in the resort region, known as the Wood River Valley, at US$8 billion (S$10 billion). The area contains the homes of such celebrities as film director Steven Spielberg, actor Tom Hanks and singer and actress Barbra Streisand.

The 11-day battle against the flames has strained the economies of the resort towns at the height of a summer recreation season tied to hiking, biking and fishing.

At the Sun Valley Resort, an all-season vacation getaway famed for its world-class skiing, workers turned on water cannons usually used to make snow to wet down a mountain whose southeastern face was the scene of a concentrated assault by firefighters.

"We've fired up the snow-making guns," resort spokesman Jack Sibbach said of the computerized system.

On Sunday, fire managers expressed cautious optimism about their prospects for curtailing the blaze in the next week or so.

"I think we'll see this thing pretty well beaten into submission," Lund said. "It's kicked our butts for the last three days, but I think we're about to turn the corner on this one." Word that firefighters were gaining ground on the fire was welcome news in Hailey, a city of 8,000.

"Saturday was really, really scary, but things seem to be looking up a bit today," said Carrie Morgridge, owner of Hailey Coffee Company.

Flames raced down a mountain on the west side of Hailey on Saturday, prompting a 3am evacuation of 200 homes. Morgridge opened the coffee shop during the pre-dawn hours to aid the displaced.

"In the good, in the bad, we will do what it takes to stay a community, to be an extended family, because that's really what we are," she said.

The Beaver Creek fire is one of dozens of blazes raging in western states amid a U.S. fire season that brought substantial property losses and the deaths of dozens of firefighters.

Elsewhere in Idaho, roughly 48 km to the west, the 1,000 summer residents of the resort communities of Pine and Featherville were allowed back into their homes early Sunday evening after a days-long evacuation prompted by a 130,000-acre (53,000-hectare) wildfire that broke out on Aug. 8.

The blaze east of the state capital Boise destroyed 38 homes and 43 other buildings and killed dozens of animals, including el