What Happened?

As I was driving to work today, I took a picture of this mountain. Obviously I know that it is dangerous for me to be taking pictures while I'm driving. I was however the only car on the road at the time so I had ample time to slow down and take this photo. I noticed that the mountain looked burnt the weekend after I went to Vegas when temperatures were sky rocketing those few days. I was just wondering if anyone knew what happened here. Was there a fire?