Why Colorado's Three Largest Wildfires Matter to Everyone

Not every wildfire lights up the same way, and Colorado's three largest fires of 2026 prove it. One was sparked by lightning, another remains under investigation near a mountain community, while another is now the state's largest wildfire after investigators determined it was human-caused.

These fires have reshaped summer travel plans, prompted evacuation orders, and shown how quickly conditions can change. Here's a closer look at Colorado’s three biggest fires.

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#3 Gold Mountain Fire Continues to Threaten Mountain Communities

Read More: Colorado's Gold Mountain Fire: How to Track Evacuations Fast

Rocky Mountain Complex Incident Management Team 3 includes nearly 1000 personnel working the Gold Mountain Fire. Steep, rugged terrain above Ouray makes this one of Colorado’s most challenging fires at over 36,800 acres (12% containment) as of Monday night. Evacuations and closures are impacting residents, recreation, and tourism alike, due to the fire’s proximity to homes, county roads, and popular mountain destinations. See evacuation map updates here.

#2 Ferris Fire Grew From Lightning Into a Southwest Colorado Giant

Colorado's 3 Largest Wildfires Tell a Bigger Story This Year — Ferris Fire photo_20260703_ScooperDrop Inciweb.wildfire.gov

Colorado’s second-largest wildfire so far this year is to the southwest in Montezuma and Dolores counties. Similar to the Snyder Fire in Grand Junction, the Ferris Fire was ignited by multiple lightning strikes that created several small fires, which merged into one large fire. With a fire at over 64,800 acres (29% containment), ranches, homes, utility infrastructure, watersheds, and valuable timber are at risk in the region. Follow the Ferris Fire here.

#1 Aspen Acres Fire Became Colorado's Largest Wildfire of 2026

So far this summer, Colorado’s Aspen Acres wildfire is the largest in the state right now. At over 99,000 acres (36% containment), the fire threatens popular landmarks Bishop Castle, Lake Isabel, and the Pike-San Isabel National Forest. Unlike the Ferris Fire, investigators have determined this blaze was human-caused. Follow this wildfire here.

LOOK: 11 National Forests At Risk This Summer In Colorado

From the ski‑swooped slopes of the White River National Forest near Aspen to the isolated high‑mesa woods near Grand Junction, Colorado’s 11 national forests span millions of acres and countless stories.

Gallery Credit: Wesley Adams

NEXT: See Photos of the Gold Mountain Fire Near Ouray, Colorado

The wildfire burning above Ouray has disrupted travel along the Million Dollar Highway, prompted mandatory evacuations, and brought an aggressive response from local, state, and federal firefighting agencies. As crews battle steep slopes, heavy timber, and challenging weather, fire conditions continue to evolve.

Gallery Credit: Wesley Adams

UP NEXT: Colorado Wildfire Damage by Year, Number of Fires + Acres Burned

Colorado has seen its fair share of wildfires over the years, but the numbers really start to tell the story when you look at them year by year.

From just a few thousand acres burned in the '90s to massive jumps in the 2000s, it’s clear something has changed.

We dug into the data to see which years were the worst and how things have shifted across the state.

Gallery Credit: Tim Gray

Source: Colorado’s 3 Largest Wildfires Tell a Bigger Story This Year

Filed Under: Colorado Wildfires, Around Colorado

Categories: Colorado Local, Colorado Outdoors, Colorado News