I drove north out of Byron toward Bridger Montana to this area of interesting rocks and trees and started this 24x36 inch painting in the field. It's called Plein Aire painting. Some purists like to start and finish out on location. Sometimes that happens, but I brought this one back to my studio to finish it up.
What happens is that the light changes on you after about an hour to an hour and a half, so you might as well pull out another canvas and paint or pack up and go back to the studio and work there.
I'll post a video of the experience soon.