White Cliffs Natural Area, located in the Coastal Plain, occurs on a large outcrop of Annona Chalk, rising out of the Little River floodplain (now Millwood Lake) and includes a 100-foot high chalk bluff over the Little River, from which the area derives its name. A continuum of plant communities reflects a range of elevations at the site from the floodplain to the ridgetop. The area includes the largest and least disturbed, Arkansas occurrences of chalk woodland. This community type is unusual for Arkansas and is more typical of vegetation that is found on Edwards Plateau of Texas. The area is also of historic significance as the site of a late 19th century settlement. The crumbling remains of foundations mark the remains of several structures.