"The Aspen Acres fire’s scale and the resources committed—over 100,000 acres, 210 personnel, and nearly $100 million in estimated costs—highlight the significant impact large wildfires can have on communities and ecosystems in Colorado."
The Aspen Acres wildfire, located 20 miles southwest of Pueblo in Custer County, Colorado, was first reported on August 6, 2026. The fire has burned approximately 102,004 acres and is currently 82% contained, with minimal to moderate behavior characterized by creeping, smoldering, and occasional single‑tree torching. Over the course of the timeline, the fire grew from 101,961 acres on the first report to 102,004 acres by August 11, after which the acreage stabilized. Containment increased from 68% on August 6 to 82% by late August, with personnel fluctuating between 210 and 40 as resources were adjusted. The incident remains active, with the latest update on September 20 indicating continued moderate behavior and a slight reduction in personnel. The incident is notable for its large size—over 100,000 acres—and the sustained effort required to achieve containment, involving up to 210 personnel and an estimated cost of nearly $100 million. The fire’s growth plateau and steady containment progress illustrate the challenges of managing extensive wildfires in the region. Preparedness advice: Residents and visitors in the vicinity should remain vigilant for changing fire conditions, follow any evacuation orders, and stay informed through local authorities. General wildfire safety practices—such as maintaining defensible space, monitoring weather updates, and avoiding outdoor activities during high‑risk periods—remain essential.
Official source description: 20 Miles SW from Pueblo, CO
Moderate; Smoldering; Creeping; Single Tree Torching
Good air quality. Outdoor activity is generally safe near this incident.
Nearest reporting station: Pueblo. Source: AirNow.gov (EPA).
Residents near the fire should stay alert to updates, follow any evacuation orders, and maintain defensible space around properties. General wildfire safety practices apply due to the current moderate fire behavior.
IRWIN ID: {1CDF5E5A-F22E-4352-A582-C2A47663B93D}
Discovered: Jun 29, 2026
Cause: Human
Est. Cost to Date: $103,600,000
Coordinates: 38.0193, -105.0713
Other wildfires that have recently been contained or dropped from official tracking in CO.
The Aspen Acres Fire has burned 102,004 acres as of September 20, 2026.
As of the latest update, the Aspen Acres Fire is 82% contained.
The official cause has been listed as: Human.
The Aspen Acres Fire is burning in Custer, CO.
Yes, as of the latest official update, the Aspen Acres Fire remains active.
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