Interior Low Plateaus

…Arkansas; on the east the Interior Low Plateaus dominate central Kentucky and Tennessee. Except for two nearly circular patches of rich limestone country—the Nashville Basin of Tennessee and the Kentucky Bluegrass region—most of both plateau regions consists of sandstone uplands, intricately dissected by streams. Local relief runs to several hundreds…

…345,000,000 years old) of the Interior Low Plateaus. Mostly doline karst with some fluviokarst is found from southern Indiana south along both the east and west flanks of the broad fold of the Cincinnati Arch through eastern and central Kentucky and into Tennessee. Karst also occurs in the limestones of…