I believe Pine Plains to be precontact features. At the Millville Historical Society is a copy of Miller (1749: A Map of the Honorable Thomas Penn’s and Richard Penn’s Land on the Prince Morris River). On this document are landforms “cripples” (a semidry stream channel) and “plains.” This map predates widespread charcoal manufacture.
At Willowwood Arboretum, Gladstone, NJ, is a pygmy pine taken from the Pine Plains over 50 years ago. Botanist Dr. Benjamin Blackburn collected the specimen, if I remember correctly. He was the author of Trees and Shrubs in Eastern North America (1952). This tree is directly behind the park office, and is about half the height of a normal pitch pine. On dunes, pitch pines also seem to grow about half their customary height and tend to keep lower branches.
Figure: Typical South Jersey “barrens” in the Millville area, Engle, C.C., Lee, L.L., and Miller, H.A., 1921: Soil Survey of the Millville Area, New Jersey. Geologic Series Bulletin 22, United States Department of Agriculture, Washington, DC. 46 pp.
i assure you there is nothing anywhere near millville that looks like that today except maybe some clearcuts for aBOUT 10 YEARS THAT IMMEDIATELY GROW BACK UP.
Al