Small patches
On lower concave slopes overlooking the Potomac and facing north to northeast
Dark brown, fertile silty loams, often stony
Bedrock high in elements like calcium, magnesium, and manganese that promote plant growth
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The shape of the slope helps soil and moisture accumulate on these slopes.
Photographer: Gary P. FlemingThe Rich Cove / Mesic Slope Forest occurs on concave (dish-shaped) slopes where soil and moisture can accumulate. Because the slopes face north to northeast, they are protected from the drying rays of the sun, which also helps create a moist setting.
Ecobit: How Topography Creates Microclimates
The underlying bedrock is high in mafic minerals, which contain elements such as calcium, magnesium, and manganese that increase soil fertility. The combination of moisture and fertility create a setting that can support a diverse and lush array of plants.
In Harpers Ferry National Historical Park, this natural community occurs in only a few locations. Scattered rocks cover up to 25% of the forest floor in some places; in others, there is only leaf litter.
