Harpers Ferry National Historical Park

Location:West Virginia, United States
IUCN Category:VI
Area:715 acres (289 hectares)
Species:All  Endangered  Invasive
Website:View website
Climate:View Climate Data
Land Use:View Land Use Data
Köppen climate classification:Cfa (Climate: warm temperate; Precipitation: fully humid; Temperature: hot summer)


Appalachian-Blue Ridge forests


Protected Area Boundary
Soil TypeOrthic Acrisols
Topsoil TextureMedium
Reference Depth100 cm
DrainageModerately well
Available Water Capacity150 m
Topsoil Properties
Gravel10 %
Sand49 %
Silt27 %
Clay24 %
USDA TextureSandy clay loam
Reference Bulk Density1.4 g/cm³
Bulk Density1.4 g/cm³
Organic Carbon1 %
Clay Cation Exchange Capacity16 cmol kg⁻¹
Soil Cation Exchange Capacity7 cmol kg⁻¹
Base Saturation44 %
Total Exchangeable Bases3.5 cmol kg⁻¹
Calcium Carbonate0 %
Calcium Sulphate0 %
Exchangeable Sodium1 %
Electrical Conductivity0.1 dS m-1
Subsoil Properties
Gravel10 %
Sand40 %
Silt24 %
Clay36 %
USDA TextureClay loam
Reference Bulk Density1.32 g/cm³
Bulk Density1.4 g/cm³
Organic Carbon0.42 %
Clay Cation Exchange Capacity14 cmol kg⁻¹
Soil Cation Exchange Capacity6 cmol kg⁻¹
Base Saturation32 %
Total Exchangeable Bases2.3 cmol kg⁻¹
Calcium Carbonate0 %
Calcium Sulphate0 %
Exchangeable Sodium2 %
Electrical Conductivity0.1 dS m-1
Soil data provided by FAO/IIASA/ISRIC/ISSCAS/JRC, 2012. Harmonized World Soil Database (version 1.2). FAO, Rome, Italy and IIASA, Laxenburg, Austria.
Köppen climate classification provided by Kottek, M., J. Grieser, C. Beck, B. Rudolf, and F. Rubel, 2006: World Map of Köppen-Geiger Climate Classification updated. Meteorol. Z., 15, 259-263