While here in Montana visiting the Glacier National Park, we found a nearby dog park. It’s in Whitefish, just a few minutes away from our RV Park and is called the Hugh Rogers W.A.G. Park (W.A.G. = Whitefish Animal Group). Laddy had a great time running around with the other dogs there!
Here’s my review of this dog park: http://www.bringfido.com/attraction/2688/#reviews