(Updates number of homes destroyed, adds details)

By Jennifer Dobner and Keith Coffman

SALT LAKE CITY/DENVER, June 23 (Reuters) - Firefighters in Western U.S. states struggled to contain out-of-control wind-stoked wildfires on Saturday as summer temperatures mounted, and a fresh blaze consumed more homes in Colorado even as Utah allowed 2,500 evacuees back for the night.

Colorado firefighters remained unable to halt the spread of the High Park Fire, a growing 81,190-acre (32,856-hectare) blaze in steep canyons west of Fort Collins. The fire jumped containment lines on Friday and roared through a subdivision, forcing the evacuation of hundreds of residents.

"The fire continues to spread west into steep, inaccessible areas with beetle-killed timber on the west and northwest portions of the fire," a statement from the federal fire incident command center said.

As firefighters focused on that monster blaze, a fire that erupted 18 miles (29 km) away in a cabin near the Rocky Mountain National Park ripped through 21 vacation dwellings and full-time residences in Estes Park, the area's fire chief said.

Reid Armstrong, a spokeswoman for the U.S. Forest Service, said that resources had to be diverted from the High Park fire to battle the destructive 20-acre (8 hectare) blaze. But officials said the small fire was nearly under control.

The losses in Estes Park were on top of 200 other homes destroyed by the High Park fire in the two weeks since the lightning-sparked blaze was first spotted in Colorado, where temperatures hit the triple digits in many areas on Saturday.

In Denver, a dense canopy of gray smoke could be seen drifting east from the fire zone over Colorado's high plains, at times blocking the view of the mountains, and the smell of burning timber wafted through the city.

The High Park fire is blamed for the death of a 62-year-old grandmother who perished in her mountain cabin. It is already the state's most destructive and the second-largest on record in Colorado.

As of Friday, there were 15 large, uncontained wildfires being fought across the country, most in six Western states - Utah, Colorado, Wyoming, Nevada, New Mexico and Arizona - the National Interagency Fire Center in Boise, Idaho, reported.


EVACUATION ORDERS LIFTED

Fanned by winds, Utah's so-called Dump Fire about 35 miles south of Salt Lake City grew to 6,023 acres on Saturday from 4,000 late Friday, and was only about 30 percent contained, Bureau of Land Management spokeswoman Cami Lee said.

The fire was burning primarily south and west of Saratoga Springs, where wind gusts of up to 35 miles per hour (56 kph) were expected to confound firefighting efforts, Lee said.

But Utah officials lifted evacuation orders on Saturday evening that had kept residents out of homes in Saratoga Springs and nearby Eagle Mountain, although residents were urged to stay on alert.

"We hope you're there for the night, but you need to be prepared," Eagle Mountain Mayor Heather Jackson said. "The winds are still blowing, the fire can still flare back up."

Officials said target shooters triggered the blaze near a city landfill on Thursday. It is the 20th fire in Utah started by target shooting this year, they said.

As fire managers predicted, winds with gusts of more than 20 miles per hour pushed the flames westward toward homes on Saturday afternoon, Curry said. But containment lines held, persuading officials that residents could safely return.

On Saturday, officials revised down substantially the number of people evacuated from the two communities. Some 588 homes were evacuated in the towns on Friday, affecting up to 2,500 residents, according to Jason Curry of Utah's office of Forestry, Fire and State Lands.

On Friday, officials had said up to 8,000 were evacuated. The change followed a more accurate count, Curry said.

Some 450 firefighters were on the ground Saturday in Utah, with support from two air tankers and several helicopters. One firefighter had suffered minor burns, but no other injuries had been reported.

Although federal authorities say the fire season got off to an early start this summer in parts of the Northern Rockies, the acreage burned nationwide is about on a par with the 10-year average for this time of year, according to fire agency records.

The biggest by far was the Whitewater-Baldy Complex fire in New Mexico, that state's largest on record, which has charred almost 300,000 acres. That blaze is nearly 90 percent contained. (Additional reporting by Keith Coffman; editing by Cynthia Johnston and Todd Eastham)

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  • A birdfeeder hangs in front of a home d

    A birdfeeder hangs in front of a home destroyed by the High Park Fire, in Bellvue, Colorado west of Fort Collins June 30, 2012. The High Park Fire burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Maggie Baker looks over item retrieved f

    Maggie Baker looks over item retrieved from her brother-in-law's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Maggie Baker (R) and her sister-in-law N

    Maggie Baker (R) and her sister-in-law Nellie Bowman walk through the remains of her brother-in-law's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Maggie Baker (R) and her sister-in-law N

    Maggie Baker (R) and her sister-in-law Nellie Bowman walk through the remains of her brother-in-law's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Maggie Baker looks at items retrieved fr

    Maggie Baker looks at items retrieved from the remains of her brother-in-law's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Maggie Baker visits the remains of her b

    Maggie Baker visits the remains of her brother-in-law's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Frank Baker visits the remains of his br

    Frank Baker visits the remains of his brother's home which was burnt to the ground in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes. The High Park Fire, which started June 9 from a lightning spark, is the second-largest and second-most destructive fire in Colorado state history. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • A charred animal trailer sits amidst the

    A charred animal trailer sits amidst the destruction caused by the High Park Fire, in Bellvue, Colorado west of Fort Collins June 30, 2012. The High Park Fire burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • A fireplace is all that remains of a hom

    A fireplace is all that remains of a home burnt to the ground in the High Park Fire, in Bellvue, Colorado west of Fort Collins June 30, 2012. The High Park Fire burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • A scorched pathway leading to a home des

    A scorched pathway leading to a home destroyed by the High Park Fire, is seen June 30, 2012 in Bellvue, Colorado west of Fort Collins. The High Park Fire burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • An item recovered from a home destroyed

    An item recovered from a home destroyed in the High Park Fire, June 30, 2012 in Bellvue, Colorado west of Fort Collins. The inferno burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • A home surrounded by burnt land stands u

    A home surrounded by burnt land stands undamaged after the High Park Fire, in Bellvue, Colorado west of Fort Collins June 30, 2012. The High Park Fire burned more than 87,000 acres and left one person dead and destroyed 259 homes making it the second-largest and second-most destructive fire in Colorado state history. The High Park Fire is 97 percent contained while the Waldo Canyon Fire, which has burned more than 17,000 acres, left at least two people dead and destroyed 346 homes is 45 percent contained. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)

  • Dragons Eye

    <a href="http://www.huffingtonpost.com/social/kcr56rck"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/kcr56rck">kcr56rck</a>:<br />Eye Of The Dragon (High Park Fire from Fort Collins Colorado)

  • High Park Wildfire

    Fire burns behind homes north of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

  • High Park Wildfire

    Fire burns behind homes north of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

    A slurry bomber drops retardant on the High Park wildfire after it crossed to the north side of Poudre Canyon and threatened homes in the Glacier View area near Livermore , Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

    The sun sets behind a plume of smoke from the High Park wildfire near Livermore , Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • Image via <a href="http://www.facebook.com/photo.php?fbid=10151219758154638&set=p.10151219758154638&type=1&theater" target="_hplink">Facebook</a>.

  • Image via <a href="http://www.facebook.com/photo.php?fbid=3273738644328&set=p.3273738644328&type=1&theater" target="_hplink">Facebook</a>.

  • High Park Wildfire

    A firefighting helicopter races to dump a load of water on the fire north of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Shirley Paskett, left, and her partner Pam Creech react as they listen to a reverse 911 call telling them to evacuate their home after the High Park wildfire crossed to the north side of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Shirley Paskett loads her stuffed bob cat into her vehicle after she and her partner were evacuated from their home after the High Park wildfire crossed to the north side of Poudre Canyon the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    A firefighting aircraft is dwarfed by a plume of smoke north of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Fire burns behind homes north of Poudre Canyon in the Glacier View area near Livermore, Colo., on Friday, June 22, 2012. The fire is burning on more than 68,000 acres west of Fort Collins and has destroyed at least 189 homes (AP Photo/Ed Andrieski)

  • In this June 19, 2012 photo provided by the Colorado National Guard, an aircraft drops a load of fire retardant slurry above the High Park wildfire about 15 miles west of Fort Collins, Colo. The ammonium phosphate dropped from airplanes to slow the spread of raging wildfires can turn a pristine mountain stream into a death zone for trout and some say the retardant has never been proven effective. (AP Photo/Colorado National Guard, John Rohrer)

  • In a photo made on Tuesday, June 19, 2012, and made available on Wednesday by the Colorado National Guard, firefighters from the Monument, Colo., fire department march to dinner at sunset in a base camp near the High Park wildfire about 15 miles west of Fort Collins, Colo.(AP Photo/Colorado National Guard, John Rohrer)

  • In this June 19, 2012 photo provided by the Colorado National Guard, an aircraft drops a load of fire retardant slurry above the High Park wildfire about 15 miles west of Fort Collins, Colo. The ammonium phosphate dropped from airplanes to slow the spread of raging wildfires can turn a pristine mountain stream into a death zone for trout and some say the retardant has never been proven effective. (AP Photo/Colorado National Guard, John Rohrer)

  • Burned trees stand on the south side of Poudre Canyon where the High Park wildfire devastated the west of Fort Collins, Colo., on Wednesday, June 20, 2012. The largest Colorado blaze west of Fort Collins was 55 percent contained and has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    The stairs that led to a home that was destroyed by the High Park Wild fire are photographed during a tour by fire officials in Poudre Canyon west of Fort Collins, Colo., on Wednesday, June 20, 2012. The largest Colorado blaze west of Fort Collins was 55 percent contained and has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Ed Andrieski)

  • The stairs that led to a home that was destroyed by the High Park Wild fire are photographed during a tour by fire officials in Poudre Canyon west of Fort Collins, Colo., on Wednesday, June 20, 2012. The largest Colorado blaze west of Fort Collins was 55 percent contained and has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    A burnt cactus stands near a home that was destroyed by the High Park Wildfire are pictured during a tour by fire officials in Poudre Canyon west of Fort Collins, Colo., on Wednesday, June 20, 2012. Areas with other homes destroyed were not included in the tour. (AP Photo/Ed Andrieski)

  • Burned trees stand on the south side of Poudre Canyon where the High Park wildfire devastated the west of Fort Collins, Colo., on Wednesday, June 20, 2012. The largest Colorado blaze west of Fort Collins was 55 percent contained and has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Ed Andrieski)

  • In this photo made on Monday, June 18, 2012, and made available Wednesday by the Colorado National Guard, a helicopter drops a load of water above the High Park wildfire, about 15 miles west of Fort Collins, Colo.. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Colorado National Guard, Jess Geffre)

  • In this photo made on Monday, June 18, 2012, and made available Wednesday by the Colorado National Guard, a helicopter drops a load of water above the High Park wildfire, about 15 miles west of Fort Collins, Colo. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Colorado National Guard , Jess Geffre)

  • In this photo taken on Monday, June 18, 2012, and made available Wednesday by the Colorado National Guard, a helicopter drops a load of water above the High Park wildfire, about 15 miles west of Fort Collins, Colo. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. (AP Photo/Colorado National Guard , Jess Geffre)

  • High Park Wildfire, Slurry Bomber

    A slurry bomber files through smoke as it circles to make a drop on the High Park wildfire near Livermore, Colo., on Tuesday, June 19, 2012. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. Incident commander Bill Hahnenberg said it could be weeks or even months before it's finally controlled. (AP Photo/Ed Andrieski)

  • High Park Wildfire

  • High Park Wildfire

    A spotter plane, top, catches up to a slurry bomber to lead it on a drop on the High Park wildfire near Livermore, Colo., on Tuesday, June 19, 2012. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. Incident commander Bill Hahnenberg said it could be weeks or even months before it's finally controlled. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Smoke rises beyond a pasture as the High Park wildfire continues to burn out of control near Livermore, Colo., on Tuesday, June 19, 2012. The fire already has destroyed at least 189 homes since it was sparked by lightning June 9. Incident commander Bill Hahnenberg said it could be weeks or even months before it's finally controlled. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Fire burns in the forest on the High Park wildfire near Livermore, Colo., on Tuesday, June 19, 2012. The wildfire has burned over 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    A helicopter lifts off after taking on water to drop on the High Park Fire west of Fort Collins, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Smoke billows from the High Park Fire west of Fort Collins, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    A helicopter lifts off after taking on water to drop on the High Park Fire west of Fort Collins, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Smoke billows from the High Park Fire west of Fort Collins, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Smoke billows from the High Park Fire west of Fort Collins, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    The sun sets amidst smoke from the High Park Fire near Bellvue, Colo., on Monday, June 18, 2012. The wildfire has now burned about 90 square miles and destroyed more than 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Fire crowns in the trees on the High Park wildfire near Livermore, Colo., on Tuesday, June 19, 2012. The wildfire has burned over 180 homes. (AP Photo/Ed Andrieski)

  • High Park Wildfire

    Fire burns in the forest on the High Park wildfire near Livermore, Colo., on Tuesday, June 19, 2012. The wildfire has burned over 180 homes. (AP Photo/Ed Andrieski)