[3] Most of the published luminescence ages from the sand are coincident with the last glaciation, a time when the southeastern United States was characterized by colder air temperatures, stronger winds, and less vegetation.
[4]The Carolina Sandhills region also contains outcrops of Cretaceous-age (~100 million years old) strata of sand, sandstone, and clay that are interpreted as fluvial (river) deposits.
The most famous endangered species of the Carolina Sandhills is probably the red-cockaded woodpecker (Picoides borealis), which prefers to excavate nesting and roosting cavities in living trees of longleaf pine that are 80–120 years old.
[13] Another rare species that can be found is the Pine Barrens tree frog, which are tolerant of low pH levels and often lay eggs in shallow, acidic ponds.
The species can only be found in the Carolina Sandhills, Southern Alabama/Florida panhandle and the closely related ecosystem New Jersey Pine Barrens.