The Rockpile Mountain Wilderness is a wilderness area in the U.S. state of Missouri. It takes its name from an ancient circle of granite rock, piled by some earlier man on top of the mountain.citation needed It is located in Madison County, Missouri southeast of Bell Mountain and southwest of Fredericktown, Missouri. The area is primarily a broken ridge, having steep rocky slopes running from Little Grass Mountain on the north to the National Forest boundary four miles to the south.
