There are a few theories to describe why the elevation of the lake is higher than the surrounding area:
An underground peat fire burned hot enough to help create the lake, these fires occur often
Some believe a meteor caused the lake to form
An old Indian legend tells the tale of a firebird that lived in the center of the swamp, it caused immense wildfires killing countless families as it burned a hole in the ground
Large amounts of peat under the lake give it its characteristic dark color
Wetland types: Freshwater emergent wetland and freshwater forested/shrub wetland surround Lake Drummond, there are also a few freshwater ponds around the lake.
Geologic formation: To the east, the Norfolk Formation was deposited on top of the clay-rich Yorktown Formation, and the sandy sediments provide the groundwater recharge area for the Great Dismal Swamp National Wildlife Refuge.
light and sandy soils found near salt water have been beneficial for growing market crops
rich soils are reclaimed from wooded swamp by felling timber and by drainage
Common crops grown included corn. potatoes, and tobacco
The climate in the GDS as a whole is highly favorable to vigorous growth for 'normal' plants, they are not equipped to endure extreme conditions