We drove up to visit an alpaca farm today, which unfortunately was closed. But in at least 3 of the fields there was one of these dogs. After a little research I think it may be a Great Pyrenees often used to guard livestock from coyotes, which unfortunately they have moved into our area. It seemed friendly enough, no barking and wagging its tail.
Very nice composition with the red sign! I liked learning about this dog and how it intimidates coyotes. Coyotes are really not very big, and all the dog's fur makes it look even bigger--like a bear.