Image: North Cascades National Park Service Complex
Cross-border fire

Cross-border fire southeast of Chilliwack doubles in size

Sep 8, 2025 | 7:35 AM

NORTH CASCADES NATIONAL PARK — A lightning-caused wildfire that ignited in late August in an area southeast of Chilliwack and Hope on the U.S. side has now grown from 297 hectares to nearly 630 hectares in size.

According to the latest online estimates, the Perry Fire as it is known now sits at 1,556.6 acres (629.9 hectares). It is located west of Little Beaver Campground on the northwest side of Ross Lake in North Cascades National Park. It was first discovered on Wednesday, Aug. 27.

There was a smoke inversion across the fire area last week moderating fire behavior and hampering aerial support due visibility. The Perry Fire features moderate backing and flanking fire behavior. Firefighters are boated into the Little Beaver drainage daily to work on point protection for park infrastructure.

Image: Watch Duty

Extremely steep, difficult, and cliffy rugged terrain continue to represent significant threats to firefighter safety which limits direct handline work. Fire managers continue a full suppression strategy with aerial delivered water.

On Sunday, August 31, a Type-3 helicopter delivered aerial water but had to disengage due to limited visibility, the National Park Service wrote in a statement. Steep, difficult, and cliffy terrain pose significant threats to firefighter safety which can then limit direct handline work. Fire managers are maintaining a full suppression strategy with aerial-delivered water.