You don't want to miss this spectacular trail run just outside of Yellowstone National Park! The West entrance and gateway to Yellowstone National Park is surrounded by three national forests, blue-ribbon trout streams, and beautiful mountain lakes. Come run a marathon, half marathon, or 10K trail run with breathtaking scenery, right outside the world's first National Park, on the trails of Custer Gallatin National Forest. All registrants receive a souvenir race medal and lanyard, a custom race…