Firefighters have pushed containment on the Big Rock Fire to 85%, a major milestone tempered by news Monday that a man who went missing during the fire’s first day died as a result of the blaze.

The Jefferson County Coroner’s Office confirmed Monday that Robert Quinn, the 64-year-old Heise area man found dead at the fire scene last week, died of smoke inhalation from the wildfire.

Quinn, known to loved ones as “Robbie,” had gone missing during the evacuation of residents on the fire’s first day, July 31, and was found by emergency responders Aug. 8 following a search.

Officials also said Monday’s update would be their last on the Big Rock Fire, as the blaze no longer poses much of a threat and containment efforts near their conclusion.

The fire remains an estimated 2,142 acres in size, fire officials said Monday morning. Personnel assigned to the fire have scaled down to 134, a sharp drop from the hundreds who worked the fire at its peak, reflecting how much the operation has wound down as containment has grown.

Officials said crews will continue mop-up operations, patrol the fire’s perimeter, remove hazard trees and extinguish remaining hot spots until the blaze is fully extinguished.

“Progress remains steady and consistent on the Big Rock Fire,” officials said in their Monday update, crediting firefighters and support personnel who worked through steep, rugged terrain, hazardous vegetation and hot, windy conditions since the fire ignited.

Fire officials, in their final update, thanked the community for its support and patience throughout the response and credited a wide range of partners, including local emergency responders, contractors, county emergency managers, dispatchers, aviation personnel and support staff, for the successful management of the fire.

In addition to federal and state resources, a wide variety of emergency personnel from Jefferson, Bonneville and Madison counties helped in the battle to contain the wildfire.

“Their commitment to safety and operational excellence substantially reduced fire potential while protecting the residences, resources and facilities of the Heise area and businesses,” fire officials said about those who battled the blaze.

The Big Rock Fire ignited July 31 from lightning near Heise, a small community about 20 miles northeast of Idaho Falls. It grew rapidly in its first days, at one point threatening dozens of homes and forcing evacuations before firefighters gained the upper hand roughly a week into the response. No structures were lost to the fire beyond two unused sheds destroyed during its early, most volatile days, and no firefighters were injured throughout the response.

Road and recreation closures remain in effect despite the significant progress made against the fire. Heise Road east of 7N Ranch, and Kelly Canyon and River Road, both east of Kelly Canyon and west of the Heise Bridge, remain closed while suppression work continues in those areas. Bureau of Land Management camping closures at Kelly Island Campground, Wolf Flats, Warm Springs and dispersed sites along River Road remain in effect through Sunday, Aug. 16. Closures on the Cress Creek Nature Trail, Stinking Springs Trail and other hiking and biking trails in the Kelly Canyon and Heise areas also remain in place.