AGS Banner
Maps and Data


Click on plus symbol + below
to reveal subheadings.
open all | close all

AGS / Education / Geology Resources / Physiographic Regions / West Gulf Coastal Plain

The West Gulf Coastal Plain is a south sloping plain of gently rolling hills and can be divided into two areas based on the age of the rocks.  The area in orange consists of Tertiary clays, sands and silts with lignite deposits and Quaternary gravels, sands and clays.  Click here to learn about the geology of this area.

The area in green consists of Cretaceous sand, clay, gravel, marl, limestone, chalk and Quaternary sand and gravel.  Click here to learn about the geology of the Cretaceous area.

Cretaceous, Tertiary and Qaternary image

See Gulf Coastal Plain on map

Learn about the geology of the West Gulf Coastal Plain forward arrow

Cretaceous Tertiary and Quaternary

AGS seal

Arkansas Geological Survey
Vardelle Parham Geology Center
3815 West Roosevelt Road
Little Rock, AR 72204
Phone: 501-296-1877 | Fax: 501-663-7360
Business Hours: Monday - Friday 8:00am - 4:30pm

Contact Us | Google Map

Big Rock Quarry Panorama
Copyright © 2015  State of Arkansas.  All Rights Reserved.