A foggy day at Yellowstone National Park over the summer. I composited in the buffalo and threw a couple textures on top to spice it up. Buffalos roamed all over the place at Yellowstone; it was hard to drive more than a couple miles without stopping and admiring nature's beauty. Sustainable travel to me is limit American excess so we can preserve the natural beauty for future generations. We carpooled over 2500 miles with 3 people, sharing. Ohio to Colorado to Montana and did so in a eco friendly car and always respected the parks we visited.