Bell Mountain Wilderness is a protected area in Missouri that is maintained by the United States Forest Service and was designated as such by the United States Congress in 1980. The wilderness area now has a total of 9,143 acres (3,700 ha). Bell Mountain is located within the Potosi-Fredericktown Ranger District of the Mark Twain National Forest, south of Potosi, Missouri in the United States. The Bell Mountain Wilderness is one of eight wilderness areas protected and preserved in Missouri. The area is popular for hiking, including a section of the Ozark Trail.