Monongahela soils have sandstone cobbles in the substratum. Meckesville soils have hue of 5YR or redder in the Bt horizon. Trego soils have hue of 5YR or redder in the Bx horizon. Watson soils have more than 10 percent gravel in the Bt horizon. Beltsville soils are nearly level to sloping soils on upland divides of northern portions of the Atlantic Coastal Plain.
Slopes have smooth or convex surfaces.
The slope gradient commonly ranges from 0 to 5 percent, but the complete range is 0 to 15 percent. The soils formed in silty sediments containing moderate amounts of sand over older gravelly and sandy sediments. The mean annual precipitation is 40 inches. These are the moderately well drained Butlertown soil, the well drained Caroline , Chillum , Matapeake , and Sassafras soils, and the poorly drained Leonardtown soils. Butlertown soils have formed in silty materials and have less than 15 percent particles coarser than very fine sand in the particle-size control section.