COLORADO SPRINGS, CO -- As firefighters gained the upper hand Monday on a fast-moving wildfire in Colorado Springs, many residents began the process of picking up lives interrupted by an inferno that killed two people, destroyed nearly 350 homes and damaged dozens more.
Evacuation orders for all except the hardest hit areas were lifted by late Sunday for most of the 32,000 residents who were forced from their homes after winds last week whipped the blaze that has been described as the most destructive in state history.
"But we also know that Mother Nature can be pretty fickle out there, so we're keeping ourselves very alert."
With the so-called Waldo Canyon Fire contained at 55% early Monday, according to the multistate fire response website InciWeb, authorities are turning their attention to what caused the blaze that chewed through more than 17,800 acres.
The FBI has joined agents from the Bureau of Alcohol, Tobacco, Firearms and Explosives as well as local authorities to investigate the cause of the fire that began in the early afternoon of June 23 in the Pike National Forest, about three miles west of Colorado Springs.
Federal agents joined the investigation after reports emerged that the wildfire, which has cost more than $11 million to date to fight, was possibly started by an arsonist.
With most of the evacuation orders lifted, a steady stream of motorists made their way on ash-covered roads to their homes late Sunday.
"We'd ask that (residents return) in an orderly fashion," said Steve Cox, the assistant to the Colorado Springs mayor.
"Our strategy will be that we continue to shrink that focus area down and down, and get people back in their homes as soon as we can."
But roughly 3,000 people were still under mandatory evacuation orders, including hundreds whose homes were destroyed or damaged by the fire.
A map released by Colorado Springs officials showed the fire's fury as it hopscotched through neighborhoods, burning some houses, damaging others and, inexplicably, skipping over some.
Lists of addresses put out by local officials spelled out the toll with simple descriptions: "No Visible Damage," "Visible Damage" and "Total Loss."
On streets with names that reflect the city's serene surroundings, Majestic Drive and Mirror Lake Court, the toll was unimaginable with nearly every house damaged or destroyed.
Some returned Sunday, temporarily, to these streets to survey the damage.
Among them was Susan Solich, who is caring for her four young grandsons after their parents died last year.
She drove onto the street in the Mountain Shadows area where she'd lived for 18 years to find some trees and homes still standing, but not hers.
"I've seen pictures, but it didn't really impact me the way it did, turning into my driveway," Solich told CNN on Sunday.
"My home was gone, it was imploded into the ground."
Sallie Clark, El Paso County commissioner, said several organizations are working together to help those rebuild their lives, including assembling records.
Solich said her family won't leave Colorado but they're not necessarily putting down roots again in Colorado Springs, either. Her focus for now is taking care of the children and making it through each day.
"It won't be quite the same. It's kind of like the twilight zone," she said. "So many of our friends are gone, and they won't be back."
Ted and Kate Stefani, meanwhile, vowed to return, and rebuild.
Video they shot showed a giant hole where their home once stood. All that remained was one stray column from near their front door plus a charred seat from which they'd first spotted flames in the distance.
"We're going to rebuild there. We love that block, we just love that community ... And it's our home," said Ted Stefani.
The wildfire is one of 11 active blazes in Colorado. Other Western states -- including Idaho, Wyoming, and Utah -- also are battling wildfires, which is straining regional and national firefighting resources.
The U.S. Forest Service has warned it could be mid-July before the Waldo Canyon Fire is fully under control.