Tertiary
Gravel
![Eastern margin of the Ozark Plateaus in northern Arkansas](../images/geology/stratigraphy/tg_stratMap.png)
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 ne Possum Grape Arkansas](../images/geology/stratigraphy/gravels_possumgrape.jpg)
Gravels near Possum Grape, Arkansas
![Gravel Deposits sitting approx 250 ft. above the White River](../images/geology/stratigraphy/gravel_deposits.jpg)
Gravel deposits sitting approx 250 ft. above the White River north of Rosie, Arkansas. Also known as Rosie boulder site