Update 12:23 a.m. The home that burned Wednesday night on Howland Road in Idyllwild was a 2,000-square-foot structure, according to Cal Fire.
The fire was reported at 8:29 p.m. at 55491 Howland and six engine crews responded, Jody Hagemann of Cal Fire-Riverside County said in a statement.
No injuries or evacuations were reported.
By 10 p.m. the home was still engulfed in flames, according to Hagemann.
Firefighters at the scene expected to be committed at least until midnight.
Posted 11:03 p.m. Fire damaged a home in Idyllwild Wednesday night and fire crews remained assigned as of 10:40 p.m., a captain with the Idyllwild Fire Protection District said in a phone interview.
"There's a structure involved," Idyllwild Fire Capt. Keith Smith said. "It's still going. The folks assigned are still up there."
The fire was on Howland Road just below Humber Park, Smith said.
The Idyllwild Town Crier newspaper's website reported a luxury home was "completely engulfed" in flames at 9:30 p.m., and engine crews were on scene but the narrow road restricted their access to the fire.
Read the Town Crier's reports here.
Humber Park is about 6,500 feet elevation between Tahquitz Rock on the east and Suicide Rock on the west, above the mountain towns of Idyllwild and Pine Cove, which are home to about 3,800 residents.
Idyllwild is in the San Jacinto Mountains, south of the San Gorgonio Pass and about 110 miles driving distance from Los Angeles.