Philomont loam - on a smooth ridgetop in a corn field. Loudoun County, Virginia. 0.48 miles west southwest of the junction of Virginia Route 745 and Virginia Route 626, and 250 feet east of Virginia Route 745. The thickness of the solum ranges from 20 to more than 50 inches. Depth to hard bedrock is greater than 60 inches. Coarse fragments of quartz and gneiss range from 0 to 35 percent in the Ap, Bt, BC, and C horizons.
Soil reaction ranges from strongly acid or very strongly acid.
The Ap horizon has hue of 5YR through 10YR, value of 4 through 6, and chroma of 3 or 4. It is sandy loam or loam in the fine earth fraction. The Bt horizon has hue of 5YR through 10YR, value of 4 through 6, and chroma of 4 through 6. It is sandy loam, loam, sandy clay loam, or clay loam in the fine earth fraction. The control section averages less than 18 percent clay.