United States, Arkansas, Clark, West Gulf Coastal Plain. Terre Noire Natural Area (Area 36), Arkansas Natural Heritage; 7.78 km west of I-30, Arkadelphia Exit, on State Highway 26/51, then south .92 km on State Highway 51 to Natural Area on left (south) side of road. Hillside just above bottom of ravine. Hollywood Topo Quad. T8S R20W S6 NE4 NE4
34.07662 -93.17674
34.07662 N 93.17674 W
Blackland prairie. Soil a heavy, light-colored clay, over a fossiliferous marl.