Marsh Creek, CR 2120, offers an easy ridgeline drive through the Mark Twain National Forest. There are side trails to check out, and occasionally, views through the trees will give a good glimpse into the valley below to the north. At the junction of Marsh Creek Spur D (2120D), the rest of the trail is noticeably more rugged, tight, and not well-traveled. Expect pin striping. There are several established sites of varying sizes. A large, flat campsite sits near the end of the trail.