Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” air quality Saturday.

Strong winds and hot, dry weather continue to fuel two separate wildfires near the northwestern side of the Grand Canyon Saturday, closing the canyon's North Rim and forcing evacuations throughout the area.

A haze visible in parts of the Sacramento Valley is from multiple wildfires burning in Northern California. A north wind is pushing the smoke to the valley, and a high-pressure system is locking it in with little wind.

Visitors and staff at two national parks in the U.S. West have been evacuted because of wildfires. Officials at Black Canyon of the Gunnison National Park in Colorado say the park closed Thursday morning after lightning sparked blazes on both rims.

The Coconino County Sheriff's Office helped evacuate people from an area north of Jacob Lake and campers in the Kaibab National Forest nearby.

The amount of land burned this year is on pace to be the most since 1994, as 100 blazes roared on Friday across the central Canadian province.

Researchers at the University of Colorado Boulder found that wildfires in Colorado and throughout the western United States can dramatically alter the water quality of rivers and streams up to

New mapping shows the Green Mountain Fire, burning six miles south of Ovando, has scorched 18 acres, but officials say it's now 15% contained.Crews finished bu

Hundreds of fires have been quickly contained thanks to early-season support, but officials warn demand could grow soon for crews and equipment.

A message from firefighters, battling two wildfires in Mason County: give them some room. Firefighters said people are getting a little too close to the Bear Gulch wildfire near Cushman Lake and the Toonerville wildfire that’s burning north of Belfair.