It was interesting to see this while driving past Creech AFB this afternoon. It was about 2:35 in the afternoon. I didn't see or hear anything flying near the smoke. I am not really sure what it was. For those who don't know, Creech AFB is located in Indian Springs, Nevada. It is the base where most of the drones are controlled from. There are many training areas near here for the drones and pilots. This photo was taken about one mile from Creech AFB. Any thoughts?