Campfire-Started Dome Fire Expands in Yosemite as Two Firefighters Die During Response
The Dome Fire has reached 6,349 acres and remains 40% contained, while crews reinforce lines and closures continue in parts of Yosemite.
A wildfire burning inside Yosemite National Park challenges firefighters, with the Dome Fire expanding across remote wilderness while crews strengthen containment lines. The blaze has grown beyond 6,000 acres, and two firefighter deaths have added a profound cost to an operation unfolding across difficult terrain. Officials monitor as conditions influence suppression work.
The Dome Fire began on September 15, 2026, north of Wawona Dome near the Chilnualna Falls Trailhead. According to the CAL FIRE update from October 2, the fire had reached 6,349 acres and remained 40% contained. The incident is under Park Service jurisdiction in Mariposa County, and CAL FIRE lists the cause as a campfire. That figure represents growth from the 5,899 acres reported October 1 as suppression efforts continue. Fire crews are continuing to monitor the perimeter and adjust tactics as conditions change.
Fire behavior has remained challenging because of the landscape and available fuels. Forest vegetation, steep slopes, and limited access can make suppression difficult, while firefighters have reported creeping fire, torching, and spotting. wind gusts and low humidity increased activity near Bridalveil Creek, where the fire spotted ahead of itself. Crews are evaluating those areas while working to limit spread despite continued containment progress. Remote terrain has required crews to work carefully while protecting firefighters from rapidly changing conditions.
Firefighters are using ground operations, aviation support, and planned firing operations. Crews are reinforcing containment lines and constructing lines where possible, while aircraft assist when conditions allow. The National Park Service has described drones with infrared sensors locating hot spots. In remote wilderness areas, crews must often use minimal-impact suppression methods rather than mechanized equipment, adding another challenge where terrain remains especially rugged. These tactics allow crews to make progress in places where conventional equipment cannot easily operate.
Some acreage growth does not represent uncontrolled spread. Officials said planned backfiring and firing operations have intentionally added burned acreage while removing vegetation that could otherwise fuel the wildfire. These operations are designed to strengthen control lines and improve firefighter safety. The distinction matters because a larger acreage figure can partly reflect suppression tactics rather than increased uncontrolled fire activity under carefully controlled conditions. Officials continue to distinguish planned burning from growth caused by active fire spread.
The human toll has been serious. CAL FIRE confirms two firefighter fatalities connected to the Dome Fire, underscoring the dangers faced by crews working in rugged conditions. Their deaths have added grief to an difficult operation, while hundreds of personnel continue rotating through assignments. The National Park Service reported 798 personnel assigned to the incident in its October 2 morning update during the ongoing response. The incident remains a demanding assignment requiring sustained coordination among firefighting teams.
Yosemite National Park remains open, but several areas are closed because of the fire and firefighting operations. Glacier Point Road is closed because of smoke and operational needs, while the Chilnualna Falls Trail and certain areas south of Ostrander Lake are closed. Officials said roads, buildings, and utilities were not under immediate threat in the October 1 update, although smoke has affected air quality in parts of the park and nearby communities. Smoke conditions can change depending on wind, temperature, and the fire’s location.
The Dome Fire’s future behavior will depend on weather, terrain, fuels, and containment work. Cooler or more humid conditions can slow activity, while warmer, drier weather and stronger winds can create renewed challenges. Visitors should check current park conditions and closures before entering affected areas as crews continue protecting lives and limiting the fire’s impacts today.
