It�s a little-known fact, but Mississippi has a volcano. True, it�s buried under 2,600 feet of sediment, but it was red hot and active roughly 79 to 69 mill

After Hurricane Katrina, the fanlike pile of sand, mud, and silt that formed near a breached levee was unique in the urban environment of New Orleans. Over the

Tennessee, extending 500 diagonal miles between Bristol and Memphis, cuts across numerous rock types, from the deformed gneiss of the Blue Ridge along the North

The first comprehensive treatment of the state's fascinating geological history

Author Charlie Spencer shows you around the state from the flat, glaciated plains in the north to the knobs of rhyolite in the St. Francois Mountains in the sou