Park rangers from Douglas and Jefferson counties stand at a roadblock as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Onlookers gather at a roadblock to watch as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
This image provided by the USDA Forest Service shows the Alexander Mountain Fire near Loveland, Colo., Tuesday, July 30, 2024. (Jason Sieg/USDA Forest Service via AP)
Flames consume trees as the Alexander Mountain Fire burns near Sylvan Dale Ranch late Tuesday, July 30, 2024, west of Loveland, Colo. (Helen H. Richardson/The Denver Post via AP)
A ranger keeps watch on a closed hiking trail as smoke rises from a wiladland fire burning ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
This image provided by the USDA Forest Service shows the Alexander Mountain Fire near Loveland, Colo., Tuesday, July 30, 2024. (Jason Sieg/USDA Forest Service via AP)
Onlookers gather to watch as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A helicopter makes a turn to collect water from a lake to drop on a fire burning through ridges near the Ken Caryl Ranch development, Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
This image provided by the USDA Forest Service shows the Alexander Mountain Fire near Loveland, Colo., Tuesday, July 30, 2024. (Jason Sieg/USDA Forest Service via AP)
Trails are closed as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Flames rise amid the billowing smoke from a wildland fire burning along the ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
This image provided by the USDA Forest Service shows the Alexander Mountain Fire near Loveland, Colo., Tuesday, July 30, 2024. (Jason Sieg/USDA Forest Service via AP)
A Ken Caryl Ranch ranger, left, fields questions from onlookers gathered at a roadblock to watch as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
The sun is obscured by smoke from wildfires north of the Greek capital, at Klafthmonos Square in central Athens on Wednesday, July 31, 2024. Strong winds and heat wave temperatures triggered wildfires in Greece and across southern Europe. (AP Photos/Derek Gatopoulos)
Jefferson County, Colo., vehicles block the road as smoke rises from a wildfire as it burns along a ridge near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A deer runs between cars as the animal wanders through the Ken Caryl Ranch development as a wildfire burns in the nearby mountains, Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Helicopter flies over smoke as it billows from a wildfire burning in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Flames rise amid billowing clouds of smoke as a wildland fire burns over ridges near the Ken Caryl Ranch development, Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
An onlooker is silhouetted as smoke billows from a wildfire burning on the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
This image provided by the USDA Forest Service shows the Alexander Mountain Fire near Loveland, Colo., Tuesday, July 30, 2024. (Jason Sieg/USDA Forest Service via AP)
A roadblock keeps residents away as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Onlookers gather at a roadblock to watch as a wildfire burns in the mountains near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Smoke billows from a wildfire as it moves across mountainsides near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Helicopter heads toward a ridge to make a water drop on a wildland fire burning near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A ranger stands guard along a closed hiking trail as a wildfire burns in neighboring ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Airplane soars over a wildfire as it burns on a ridge near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
An aircraft soars over a plume of smoke rising as a wildfire burns a ridge near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A deer moves away from a wildfire as it burns in ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Residents gather to watch a wildfire near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Flames rise amid the billowing smoke from a wildland fire burning along the ridges near the Ken Caryl Ranch development Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
Flames rise amid the heavy smoke as a wildland fire burns over ridges near the Ken Caryl Ranch development on Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A pair of red rock formations stand in Roxborough Park as smoke envelopes ridges in the background as a wildland fire burns near the Ken Caryl Ranch development, Wednesday, July 31, 2024, southwest of Littleton, Colo. (AP Photo/David Zalubowski)
A vehicle heads westbound on 6th Avenue near Sheridan as a haze obscures the skyline of downtown Denver while several wildfires burn across the Centennial State Wednesday, July 31, 2024, in this photograph taken from Lakewood, Colo. (AP Photo/David Zalubowski)