Deer Creek Fire has burned 381 acres and is 20% contained.
The fire is located south of the Deer Creek Dam up Provo Canyon.
Public Information Officer Leann Fox says the fire started around noon on Wednesday and raced up the hill side.
“It was driven by weather and terrain, they got air resources on it very quickly. Then later some thunder clouds moved in and put quite a bit of moisture on the fire, it really helped the situation out.”
The rain storm started around 4:00 pm, after the rain fall crews went back out to continue working.