Although the Natural Resource Conservation Service has prepared Soil Surveys for some of the counties in which
Soils are dominated by Ochrepts and Udults. Dystrochrepts are on steep slopes of lower elevation mountains. Hapludults are on the low foothills, and Haplumbrepts have formed on foot slopes and in valleys. Haplumbrepts are also common at higher elevations, while Hapludults are dominant in broad valleys. Rhodudults have formed over rocks with a high content of mafic minerals. Soils are generally moderately deep and medium textured. Boulders and bedrock outcrops are common on upper slopes, but are not extensive. These soils have a mesic temperature regime, a udic moisture regime, and mixed mineralogy. Similar soils with a frigid temperature regime are typically present at elevations above 4,800 feet. Soils receive adequate moisture for growth of vegetation throughout the year. (McNab, W.H. 1994. Ecological Subregions of the
Terms like Ochrepts and Udults are names given by soil scientists to groups of soils. Ochrepts are young soils with thin, light colored horizons whereas Udults are older and tend to be moist. A mesic temperature regime is one where the mean annual soil temperature is at least 8o C but less than 15o C. A udic moisture regime is one in which soils are anticipated to be wet sometime within 90 days of the summer solstice. Dry conditions generally do not persist for more than 60 consecutive days.
Websites that provide helpful information about soils are:
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Did You Know?
In 1928, wanting to escape the heat and humidity of summers in Washington, D.C., Herbert and Lou Henry Hoover began looking for a "summer place" within a day's drive of the city. The Hoovers acquired land within the proposed Shenandoah National Park and built Rapidan Camp, their summer White House.