Inside Wind Cave the scientists found that chemicals fossilised within the rocks shine in brilliant hues of pink, blue, and ...

Planning is underway to burn 1,094 acres of land east of the park’s headquarters this April. Timing for the fire will depend ...

Astrobiologist Joshua Sebree of the University of Northern Iowa suggests that South Dakota's Wind Cave exhibits chemical similarities to Jupiter’s icy moon Europa.

I visited all the major US national parks and ranked them based on factors like beauty and crowd size. My favorites include ...

Deep below the Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the ...

Traverse 330 steps on the way to such distinctive chambers as the “Devil’s Kitchen” and the “Crystal Vault.” Wild caving ...