while America's longest navigable underground river flows beneath southern Indiana's limestone terrain. For those craving a dramatic landscape without leaving the Hoosier State, Hanging Rock ...

Corn and soy fields seem to take up vast swaths of Indiana’s land across ... Karst is a landscape filled with limestone or other similarly soluble rocks underground. Acidic waters erode the ...

The limestone rock began forming 350 million years ago from the remains ... and 1946 portions of the property were sold to the Ohio and Indiana Stone Corporation and the Miami Stone Company. In 1975, ...

A truck crash and hazmat incident forced the closure of Chimney Rock Road for several hours ... a truck hauling a trailer containing powdered limestone was driving too fast and lost control ...