File:Bulletin 429 Plate XVI B Annona Chalk Brownstown Marl.jpg|Annona Chalk overlying Ozan Formation at what is now called White Cliffs Natural Area, with the
Little River in the foreground,
Howard County, AR (c. 1910) File:Plate XLVIII Chalk Bluff at Whitecliffs Landing.jpg|Another view of the same location (c. 1902) ==See also==