Lynne Ronk of Deckers took this photo on Oct. 5, 2012, in Buena Vista. The photo shows Mount Princeton.
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Tim Tolnay took this photo on Oct. 14 in Evergreen at Elk Meadows Open Space.
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Phil Padilla of Thornton took this photo on Oct. 6, 2012, on the Peak to Peak Highway.
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Lynne Ronk of Deckers took this photo in the Sylvan Lake area on Oct. 2, 2012.
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Sara Bazley of Castle Rock took this photo on Oct. 14. It shows a "close-up shot of some scrub oak tree leaves."
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Jim Thrush of Eaton took this photo in Estes Park on Oct. 2, 2012.
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Steven Chevalier of Ridgeway took this photo "at the summit of Ophir Pass, 11,789 feet, on Sept. 22, 2012."
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Tony Lane of Castle Rock took this photo of a Stellar's Jay in the aspen near Cameron Pass on Sept. 20, 2012.
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Steve Adams of Conifer took this photo on Sept. 27, 2012, at Clear Lake in the Uncompahgre National Forest.
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David Dahms of Windsor took this photo on Highway 7 on Sept. 29, 2012. Longs Peak is visible in the distance.
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Stephen Johnson shared this photo on Sept. 28, 2012, of an "old abandoned mining building" near Central City. He wrote: "The stone walls were falling apart and the wood roof was nearly gone. Still from inside there was a great view of the changing aspen."
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Brooke Robertson of Loveland took this photo near Gold Hill on Oct. 2, 2012.
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Aaron Wojtas of Lakewood took this photo on Oct. 3, 2012, in Crested Butte.
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Judi Puncec of Lakewood took this photo along the Peak to Peak Highway on Sept. 24, 2012.
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Doug Peters of Golden took this photo on the Georgetown Loop Railroad on Sept. 29, 2012.
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Doug Peters of Golden took this photo on the Georgetown Loop Railroad on Sept. 29, 2012.
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Matthew Marhias, of Franktown, shared this photo on Oct. 3, 2012, of a photo he took on Dunkley Pass. He wrote: "I pulled over to take this shot and my granddaughter Grace exclaimed, "firetrees!" I thought it was a fitting name."
Georgetown Loop Railroad In 2012
Doug Peters of Golden took this photo on the Georgetown Loop Railroad on Sept. 29, 2012.
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Larry Miller of Aurora took this photo along the Peak to Peak Highway on Oct. 2, 2012.
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Marty Prater took this photo on Oct. 2, 2012, near his home "along the hiking trail in Will-O-Wisp Metro District, Bailey."
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Lynne Ronk of Deckers took this photo on Highway 24 near Minturn on Sept. 28, 2012.
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Markus Kubetzko of Longmont took this photo on Sept. 23 in the Peak to Peak Highway and Brainard Lake area.
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Peter Sowar of Crested Butte took this photo on Sept. 14 near town and wrote: "Crested Butte is happening now."
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Jenifer Stone of Longmont took this photo near Aspen on Sept. 29, 2012.
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Chuck Shirey took this photo on Sept. 21, 2012, in the Maroon Bells Scenic Area near Aspen.
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Bruce Hale of Denver took this photo at Mount Yale on Sept. 24, 2012.
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Marsha Hobert of Estes Park/Glen Haven took this photo on Sept. 26, 2012, in Rocky Mountain National Park.
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Kathleen Niguidula-Thrower of Denver took this photo on Guanella Pass on Sept. 22, 2012.
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Jennifer Kabat of Boulder took this photo on the Switzerland Trail near Ward on Sept. 30, 2012.
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Lynn Ronk of Deckers took this photo of Gore Creek on Sept. 29 in Vail.
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Peter Pereira of Centennial took this photo on Sept. 26, 2012, on Squaw Pass Road. He wrote: "The fog closed Mt. Evans road to Summit Lake."
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Tammy Micco of Aurora took this photo on Squaw Pass during the last week of September 2012.
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Peter Pereira of Centennial took this photo on Oct. 1 at Fall River Road.
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Suchita Rao, a Californian from the town of Living, shared this photo from Independence Pass on Sept. 29, 2012.
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Harry Puncec of Lakewood took this photo along the Peak to Peak Highway on Sept. 24, 2012.
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Suchita Rao, a Californian from the town of Living, shared this photo from Independence Pass on Sept. 29, 2012.
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Dan Walters of Lakewood took this photo near Nederland on Sept. 22, 2012, near the Indian Peaks Wilderness Area.
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Chris Freeman took this photo in Rocky Mountain National Park on Sept. 16, 2012.
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Dona Klein of Parker, took this photo on Sept. 28, 2012, near Mount Evans.
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Rose Mary DeLisa of Morrison took this photo on Sept. 27, 2012, on Boreas Pass.
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Nate Heggem of Lakewood took this photo at Steamboat Lake on Sept. 28, 2012.
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Mike Hagen of Centennial took this photo on Sept. 26, 2012 on Highway of Legends Highway 12 from La Veta to Trinidad.
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Michael Smith of Westminster took this photo on Sept. 29, 2012, in Westminster open space.
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Peter Pereira of Centennial took this photo on Highway 67 near Cripple Creek on Sept. 25, 2012.
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Jeff Delio of Littleton took this photo of the Mt. Sneffles range in the San Juans near Ridgway.
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Suchita Rao, a Californian from the town of Living, shared this photo from Independence Pass on Sept. 29, 2012.
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Tammy Micco of Aurora took this photo on Squaw Pass during the last week of September 2012.
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Aaron Skoff took this photo near Aspen on Sept. 22.
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Peter Pereira of Centennial took this photo on Oct. 1 at Fall River Road.
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Allicia Haley took this photo on Sept. 18 on Kenosha Pass while Hiking on the Colorado Trail.
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Laurie Talbott took this photo on Sept. 25, 2012, of snow on the mountains near Winter Park.
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Mike Hagen of Centennial took this photo on Sept. 26 on Highway 160 west of La Veta Pass.
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Markus Kubetzko of Longmont took this photo on Sept. 23 in the Peak to Peak Highway and Brainard Lake area.
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Ann Griffin of Denver took this photo on Sept. 16 at Kenosha Pass.
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Ann Griffin of Denver took this photo on Sept. 16 at Kenosha Pass.
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Ann Griffin of Denver took this photo on Sept. 16 at Kenosha Pass.
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Chris Cartwright of Mead took this photo on Sept. 23, 2012, at Lost Lake Campground Road near Crested Butte.
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Chuck Shirey took this photo on Sept. 21, 2012, in the Maroon Bells Scenic Area near Aspen.
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Jacob Padilla of Thornton took this photo near Ward on Sept. 26, 2012.
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Jeanne and Cory Morris of Aurora took this photo in Lefthand Canyon in Boulder on Sept. 22, 2012.
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Richard Kohlman took this photo on Sept. 20, 2012, while going "up Cottonwood Canyon to Cottonwood Pass west of Buena Vista."
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Kyle Schroeder of Denver took this photo on Sept. 16 on Kenosha Pass.
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Peter Oeflein took this photo in Crested Butte on Sept. 17.
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Sherry Thomas of Buena Vista took this photo at Cottonwood Lake on Sept. 15.
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Marsha Hobert of Estes Park took this photo on Highway 7 near Allenspark on Sept. 18, 2012.
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Richard Kohlman took this photo on Sept. 20, 2012, while going "up Cottonwood Canyon to Cottonwood Pass west of Buena Vista."
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Suzanne McGarry of Morrison took this photo on Sept. 9 near Jefferson and near Kenosha Pass. She wrote: "Aspens are definitely turning. Get up to the mountains and enjoy!"
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Stephen Johnson of Centennial took this photo on Sept. 20, 2012, on Guanella Pass. He wrote: "The Aspens in this grove is much taller than I've seen in most of the state."
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Angela Rathbun took this photo on Sept. 23, 2012, between Walden and Granby.
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Debra Dieter of Longmont took this photo on Sept. 17, 2012, near Frisco.
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Kim Lee of Thornton took this photo outside Silverton on Highway 160 on Sept. 15, 2012.
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Markus Kubetzko of Longmont took this photo on Sept. 23 in the Peak to Peak Highway and Brainard Lake area.
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Peter Pereira of Centennial took this photo on Sept. 19, 2012, in Vail.
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Karen Fliedner of Englewood took this photo at Cottonwood Lake on Sept. 18, 2012.
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Bill Nault of Evergreen took this photo on Boreas Pass on Sept. 19.
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Paula Cramer of Littleton took this photo on a hiking trail in Steamboat Springs on Sept. 16, 2012.
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Carol Nichols of Crestone took this photo near Lake City on Sept. 22, 2012.
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Robert Hillen shared this photo on Sept. 20 of Kenosha Pass.
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Peter Pereira of Centennial took this photo on Sept. 28 in Idaho Springs.
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Stephen Johnson of Centennial took this photo on Sept. 20, 2012, on Guanella Pass.
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Dwight Ryland of Westminster took this photo on Sept. 14 of "Notch Mt. from Shrine Pass Road."
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Andre Ewing of Aurora took this photo on Sept. 18, 2012, near Georgetown.
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Bill Fountain of Highlands Ranch took this photo on Sept. 13 on Boreas Pass.
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Bill Fountain of Highlands Ranch took this photo on Sept. 13 at Breckenridge in French Gulch.
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Mike Luenenborg took this photo on Sept. 14 on Guanella Pass Road.
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Sheila Schwartz of Boulder took this photo on Sept. 16 at the Maroon Bells Scenic Area near Aspen.
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Tom Deal of Denver shared this photo on Sept. 18. It was taken in Silverthorne.
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Peter Pereira of Centennial took this photo on Sept. 17, 2012, of a "Bull Elk bugling at Rocky Mountain National Park."
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Peter Pereira of Centennial took this photo on Sept. 18, 2012, on Jim Trail in Winter Park. "The colors were awesome," he wrote.
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Marlys Duran of Lakewood took this photo on Sept. 15, 2012, between Yampa and Stillwater Reservoir.
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Peter Pereira of Centennial took this photo on Sept. 19, 2012, in Bakerville. "The smoke in the sky helped with this picture," he wrote.
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Glenn Rhoades took this photo on Sept. 19 on Guanela Pass looking northeast just a few miles from Georgetown.
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CBS4 photojournalist John Mason captured this image of yellow aspens in the high country near Frisco on Sept. 17.
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Laurie Talbott of Winter Park took this photo of a railroad crossing at Vasquez Road in Downtown Winter Park on Sept. 16, 2012.
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Jackie Mauer of Cedaredge took this photo on the Grand Mesa on Sept. 18.
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Jake Padilla of Thornton took this photo in the James Peak Wilderness on Sept. 11, 2012.
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Dave McMurrin shared this photo on Sept. 11 "from Old Ghost town, of Ironton, Colorado. Located on Highway 550. Red Mountain Pass."
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Michelle Gerber from Crested Butte took this photo in Crested Butte on Sept. 20.
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Laura Heggem of Lakewood took this photo on Kenosha Pass on Sept. 15, 2012.
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A mist descended on Maroon Bells on the morning of Sept. 12. (credit: Jeremy Swanson)
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Aletha Dove of Craig took this photo on Sept. 16, 2012, at Rabbit Ears Pass.
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Laura Heggem of Lakewood took this photo on Kenosha Pass on Sept. 15, 2012.
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Marsha Hobert of Estes Park took this photo on the Peak to Peak Highway near Brainard Lake on Sept. 12, 2012.
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Jeff Brown shared this photo taken in the Rio Grande Valley on Sept. 10. "This is looking up Middle Creek Road just West of Creede," he wrote.
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Aletha Dove of Craig took this photo on Sept. 16, 2012, at Buffalo Pass.
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Bill Nault of Evergreen took this photo north of Leadville on Sept. 6, 2012.
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Jake Padilla of Thornton took this photo in the James Peak Wilderness on Sept. 11, 2012.
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Peter Pereira of Centennial took this photo on Sept. 16, 2012, on Kenosha Pass.
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Marsha Hobert of Estes Park took this photo on the Peak to Peak Highway near Brainard Lake on Sept. 12, 2012.
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Peter Pereira of Centennial took this photo on Guanella Pass on Sept. 10.
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Aletha Dove of Craig took this photo on Sept. 16, 2012, at Rabbit Ears Pass.
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Irmelin Shively of Lafayette shared this photo on Sept. 11 and wrote "In the high country on I70 the colors are starting to change."
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Bill Nault of Evergreen took this photo north of Leadville on Sept. 6, 2012.
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The mist makes it tough to see if snow will stick at Telluride Ski Area the morning of Sept. 12. (credit: Telluride Ski & Golf)
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The mist makes it tough to see if snow will stick at Telluride Ski Area the morning of Sept. 12. (credit: Telluride Ski & Golf)
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Bill Nault of Evergreen took this photo north of Leadville on Sept. 6, 2012.
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Steven Ayers took this photo north of Leadville on Sept. 5, 2012, of "Early Fall Colors."
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A mist descended on Maroon Bells on Sept. 12. (credit: Jeremy Swanson)
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Loveland Ski Area had the snowmaking machines on standby Wednesday morning. (credit: Loveland Ski Area)
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Peter Pereira of Centennial took this photo on Guanella Pass on Sept. 10.
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Michael Sniegowski of Denver took this photo at Rocky Mountain National Park on Sept. 4.
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Peter Pereira of Centennial took this photo on Guanella Pass on Sept. 10.
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Peter Pereira of Centennial took this photo on Guanella Pass on Sept. 10.
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Peter Pereira of Centennial took this photo on Guanella Pass on Sept. 10.
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Chuck Autrey of Longmont took this photo at A-Basin/Loveland Pass on Monday, Sept. 3 , 2012.