25. Physiographic characterization of natural area: 



Serai gum-maple community in the northern half of the Gates 

 County portion of the Great Dismal Swamp, in the Embayed Section 

 of the Coastal Plain Province of the Atlantic Plain. 



Geological formations The Dismal Swamp Peat, over the Norfolk 

 and Sandbridge Formations. 



Geological formation age; 



Dismal Swamp Peat: 11 ,000 - 12,000 yrs ago to early 19th century. 

 Norfolk and Sandbridge Formations: Sangamon Interglacial, 80,000 

 to 100,000 yrs BP. 



References cited: 



Oaks, R. Q. s and D. R. Whitehead. 1979. Geologic setting and origin 

 of the Dismal Swamp, southeastern Virginia and northeastern North 

 Carolina. In: P. W. Kirk, Jr., ed. The Great Dismal Swamp. 

 Charlottesville: Univ. of Virginia Press. 427 p. 



Oaks, R. Q., Jr. amd J. R. Dubar. 1974. Post-Miocene stratigraphy, 

 central and southern Atlantic Coastal Plain. Logan: Utah State 

 Univ. Press. 275 p. 



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