Hydrologic subsystem: Very dry-xeric 



Water chemistry: Fresh 



Water regime: Not applicable 



Drainage class: Excessively drained 



Drainage basin: Northeast Cape Fear and Cape Fear Rivers 



Hydrology characterization: Excessively drained sand ridge occupying 



the peninsula between the Northeast Cape Fear and the Cape Fear River 



Basins. 



24D. Topography Summary 



Landform: Escarpment sand ridge 



Shelter: Open to partly sheltered 



Aspect: Northeast - southwest 



Slope Angle: Gently sloping to sloping 



Profile: Constant, with slight variations of microrelief 



Surface patterns: Irregular 



Position: Upper and mid-slope 



25. Physiographic characterization of natural area: An edaphic climax 

 community of a psammosere on an escarpment sand ridge, scalloped 

 laterally by meanders of the Northeast Cape Fear and Cape Fear Rivers, 

 and vertically by wind erosion, Carolina bay formation, and/or 

 solution slumping. The ridge drains into both river basins, is 

 underlain by Eocene Castle Hayne limestone, and is comprised of deep 

 sands of Pleistocene and Holocene origin, deposited in the Coastal 

 Plain province of the Atlantic Plain. 



Geological Formation: Eocene Castle Hayne limestone; Pleistocene and 

 Holocene sands 



Geological Formation age: Eocene formation: 40-50 million years; 

 Pleistocene deposits: 6,000 to ca. 3 million years before present; 

 Holocene: slightly less than 6,000 years before present 



26. Summary - Endangered and threatened species: 



111 



