MILLCREEK, Utah — A new wildfire started Saturday near the mouth of Millcreek Canyon.
Officials say the "Crestwood Fire" started around 5:30 p.m. due to arcing power lines.
On Sunday afternoon, it was 90 percent contained at 4.55 acres.
Millcreek Canyon was put under mandatory evacuation — an estimated 300-400 people comprised mostly of people recreating, but some residents — but the evacuations were lifted just over an hour later.
The canyon was also temporarily closed to anyone else trying to go up.
Two helicopters and two single-engine air tankers have been called in to battle the blaze from the air, and about 100 firefighters from multiple local agencies worked on the ground to contain it.
UFA spokesman Ryan Love told reporters the fire was moving uphill, away from homes on the east bench of the Salt Lake Valley. Unlike some recent fires, only calm winds were present and were not affecting the spread of the fire much.
The cause of the fire is not yet determined, but Love urged Utahns to be extra careful during high fire danger times this summer.
“This area looks rather green, but it is dangerously explosive and has potential to spread fire rather quickly," Love said. "Even just a spark could start a wildfire."
Love also urged that residents should not try to drive up to the scene to get a look, because it makes it difficult for crews to access the roads. Instead, he said Greenwood Elementary is a spot where people can safely go to watch.
This article will be updated as more information becomes available.