Singletary State Lake State Park

(North Carolina)

Singletary Lake, surrounded by Singletary Lake State Park in Bladen County, North Carolina in the United States, is one of a series of Carolina bay lakes that stretch from New Jersey to Florida along the Atlantic Coastal Plain. Recent work by the U.S. Geological Survey has interpreted the Carolina Bays as relict thermokarst lakes that formed several thousands of years ago when the climate was colder, drier, and windier. Thermokarst lakes develop by thawing of frozen ground (permafrost) and by subsequent modification by wind and water. Thus, this interpretation suggests that permafrost once extended as far south as the Carolina Bays during the last ice age and (or) previous ice ages. Singletary Lake is not fed by any stream, but relies entirely upon rain. The land beneath and surrounding the lake is mica-rich sandy clay and sand that is from the Upper Cretaceous era with a thin layer of Pleistocene deposits covering it. This land is lower than the surrounding land and drains very poorly, creating Singletary Lake. (Ref: https://en.wikipedia.org/wiki/Singletary_Lake)