Soils

From Jones 2005:
Bluegrass: Alfisols, Udalf suborder

• Inner Bluegrass: Maury, Hampshire, and Loradale
• Outer Bluegrass: Lowell, Shelbyville, and Fairmont
• Hills of Bluegrass: Eden, Nicholson, and Lowell

Knobs: Inseptisols, suborder Ochrepts

Appalachian Plateaus: Inceptisol, Ochrept suborder