A lightning-sparked wildfire burning in a remote corner of the North Cascades grew to roughly seven acres this week, drawing suppression crews and helicopter support as firefighters work to prevent further spread in challenging terrain east of Bellingham.

The Luna Fire is burning southwest of Luna Camp in North Cascades National Park, along the Big Beaver Trail in steep, rocky terrain made up largely of rock scree. The fire was discovered in early July, though investigators believe it ignited during a lightning storm that moved through the area on June 24. At the time of discovery it covered roughly one acre. By July 7 it had grown to about 5.5 acres, and as of Wednesday, July 8, the fire is estimated at seven acres.

Crews Working in Difficult Conditions

Suppression crews from North Cascades National Park have been working the fire since it was first reported. On July 3, a Warm Springs Wildland Fire Module team was inserted into the remote area to begin direct suppression efforts. Three helicopters, including Type-3 and Type-1 aircraft, have been conducting water drops to slow the fire's advance.

The terrain around Luna Camp presents significant obstacles for ground crews. The Big Beaver Trail corridor runs through one of the more remote sections of North Cascades National Park, roughly 20 miles east of Bellingham via SR 20. Scree fields offer little natural firebreak and shift easily underfoot. No roads provide direct access to the fire, meaning all personnel and equipment must arrive by foot or air.

No containment percentage has been reported, which is typical for fires burning in extreme backcountry terrain where conditions are difficult to measure precisely. Firefighters in these situations often prioritize preventing spread into forested areas rather than constructing perimeter lines in the rocks. Real-time updates on fire activity are available through Watch Duty and InciWeb, the national interagency incident information system.

Two Nearby Fires Fully Contained

While the Luna Fire continues to grow, crews extinguished two smaller blazes in North Cascades National Park over the weekend. Both the Rigby Fire and the Little Beaver Fire have been declared fully contained. The Luna Fire is now the only active wildfire of note within the park's boundaries in Whatcom County.

The broader fire season is active across the Pacific Northwest. The Chelan Hills Fire in Douglas County along the Columbia River had burned nearly 10,000 acres as of Tuesday night, July 7, at 50% containment. One person was killed when a vehicle was overtaken by flames on a steep road, and more than 100 homes and structures have been destroyed. That fire, which ignited on July 4, offers a stark reminder of how quickly lightning-ignited backcountry fires can escape initial attack under the right conditions.

Regional Context: Fire Conditions in Whatcom County

A Stage 1 Burn Ban has been in effect across Whatcom County since mid-June 2026, restricting outdoor burning to reduce ignition risk during dry summer conditions. The ban covers most recreational and debris-burning activities.

Last week, smoke from a British Columbia wildfire pushed unhealthy air quality into Whatcom County, a sign of the regional fire pressure that builds each summer as snowpack recedes and temperatures rise. The Luna Fire emerges against that backdrop. While the fire is in a rocky, remote zone that limits its potential to spread explosively into heavy fuel loads, fire behavior in the North Cascades can shift quickly when afternoon temperatures peak and evening wind events kick up through mountain terrain.

What to Watch For

Fire managers will closely monitor weather over the coming days. A shift toward warmer, drier, or windier conditions in the North Cascades could push the Luna Fire's spread from its current scree footprint into surrounding conifer forests. North Cascades National Park has not issued any evacuation notices or trail closures in the Big Beaver area as of this writing, but conditions around the Luna Camp corridor should be considered volatile for hikers planning backcountry trips.

Anyone who spots smoke or unusual fire activity in the mountains around Whatcom County should call 911 promptly. Early reporting remains one of the most effective tools for keeping small backcountry fires from growing beyond the capacity of remote crews to manage them. Updated trail and fire status is available through the North Cascades National Park visitor centers in Newhalem and Sedro-Woolley.