Irondale, Knobtop, and Syenite soils are 20 to 40 inches over bedrock and commonly are on mountainous slopes at higher elevations. Loughboro soils have less than 15 percent rock fragments, are poorly drained and are on nearly level uplands. Midco soils do not have a fragipan and are on flood plains lower in the landscape. Moderately well drained. Runoff is medium or high.
Permeability is moderate above the fragipan and very slow in the fragipan.
Most areas remain forested. Native vegetation is mixed hardwoods with some interspersed shortleaf pine. Some acreage was included in mapping with the Irondale series in St. Francois County, Missouri. The series is of moderate extent. Iron County, Missouri, 1988.