There is lots of open range in Montana and most of that can be pretty treeless. I have ate many lunches sitting in the shade cast by my truck. On those days I am thankful for it. I got lucky last week that about lunch time I was traveling down a road that crossed a small creek and it had a few cottonwoods. I backed into a two track lane and ate my lunch in the shade of the cottonwood tree. It was cool with a gentle breeze. Sweet shade for sure.