Apr 25, 2010· La Petite Roche ("The Little Rock") is the French name given to a 260-300 million year old sandstone and shale rock formation located along the Arkansas River in downtown Little Rock, Arkansas.The outcropping is said to have been named by French explorer Jean-Baptise Bénard de la Harpe in May 1722. De la Harpe was looking for a mountain or large rock in the region called the …
