The Gulf of Mexico covered the gently sloped sand hills of lower Arkansas until about 50 million years ago. The Ouachita orogeny--the collision that pushed up what we know, in eroded form, as the ...

The Geological Survey of Alabama received funding from the USGS to coordinate the East Gulf Coastal Plain Stratigraphic Reconciliation Initiative Working Group, comprised of representatives from the ...

"The Gulf Coastal Plain is an area of relatively gently sloping terrain extending across the southern portion of the United States from Texas to Georgia," wrote Stroud. "It was covered by the waters ...