Age: Tertiary Period
Distribution: Eastern margin of the Ozark Plateaus in northern Arkansas
Geology: Scattered deposits of gravel present on isolated hills lying above Paleozoic and Cretaceous(?) rocks. This sequence has not been assigned to a specific stratigraphic unit or studied in detail.

Gravels near Possum Grape, Arkansas

Gravel deposits sitting approx 250 ft. above the White River north of Rosie, Arkansas. Also known as Rosie boulder site