Mountain bikers have discovered what cross-country skiers have known all along: The Dirty Bismark, which runs alongside the Morgul Bismark road-race course, is a winter wonderland, a rural paradise that's perfect for fat-tire fun in the snow. More plains riding than mountain, the fifteen-mile loop trail, known locally as the "Happy Meal Loop," alternates between singletrack and dirt road, but you still get plenty of mountain views all around, as well as a little bit of uphill and a lot of wide-open prairie to fall into without hitting anything but powder (and maybe a few cows).
Marshall Mesa Trailhead
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