Hundreds people were evacuated from their homes in Rockport Estates, Bridge Hollow and portions of Promontory due to a fast moving fire believed to have been caused by a lightning strike Tuesday afternoon.
As of nightfall on Tuesday, Steve Rutter of the Sate Forester's Office estimated the blaze was 5 percent contained.
According to Park City Fire District Chief Paul Hewitt, the fire had grown to 1,500 acres and 12-15 structures were damaged.
The Red Cross established two evacuation centers, one at the LDS Church at Trailside and one at the North Summit Middle School in Coalville to assist those displaced by the fire.
At a press conference in Wanship on Tuesday night, Utah Gov. Gary Herbert praised the effort by local, state and federal firefighting units.
"What we see here tonight in less than eight hours, and what they have done has been incredible," Herbert said. "We lost 12 residences but lots of homes were saved. It's a fast-moving fire but the response has been fast."
Herbert listed the resources used to fight the fire, including three helicopters, the National Guard and 175 fire personnel on the ground. He said they hope to have 250 personnel on the ground by Wednesday morning.
"It's key that we are on top of [the fire] first thing in the morning," Herbert said. "Everything that can be done is being done. I plead with people to stay away."
Evacuees from Rockport Estates and Promontory were urged initially to head to the Church of Jesus Christ of Latter-day Saints ward in Wanship to receive aid from local volunteers and the Red Cross. However, since the fire had caused numerous power outages in the area, the location was then moved to the Hoytsville LDS church.
After it was determined that access to showers was preferred, the evacuee location was then moved to the North Summit Middle School in Coalville where the Red Cross and local volunteers began to bring in food, water, cots and other supplies.
Tina Spencer, a volunteer with the Red Cross, said she got the call to go to the middle school at 3 p.m.
"I went down to the [Red Cross] chapter, got the address, and got somebody to drive the truck and trailer," Spencer said. "We have some spontaneous volunteers, which is great."
One of the evacuees, Brittney Miller, a resident of Rockport Estates, was backpacking in the Uinta Mountains Tuesday afternoon when she started receiving numerous calls and text messages regarding the fire.
"We know [the fire] is right around our house, but we're still hoping for the best," Miller said. "The house below ours was burned and some near ours. My husband is in the volunteer fire department and went to go help with the fire."
Miller, whose family has lived at Rockport Estates for three years, has three children and as of Tuesday evening was still "playing it by ear" as to whether they would stay the night at the middle school.
Promontory resident Pat Pike said he noticed smoke coming from the south Tuesday afternoon and called his manager. He started to gather all of his important items and 15 minutes later the manager called and said there was a mandatory evacuation.
Pike said he had a mental plan for if the mountain started to burn. He ran to his friend's house, who was in Ogden, and got their dogs.
"I went back to the house, but by the time I got there, the flames had literally gone west around the mountain and were turning the corner and starting to come back around to the east. The fire was moving so fast," Pike said.
He added that his house was fine, as he had taken precautionary measures.
"I've spent a lot of time clearing sagebrush 100, 125 feet around my property," Pike said. "I'm positive that paid off."
Supression efforts on the Rockport Estates fire will continue Wednesday and Utah State Forester Dick Buehler said at the press conference on Tuesday night that crews have been "painting the mountain as red as they can" with fire retardant.
Summit County Sheriff Dave Edumunds added that evacuation for families with children in the Promontory and Rockport Estates areas is mandatory. Adults are allowed to stay in their homes, but officials are not allowing people back in once they evacuate.