• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Wind Cave Room - Bubble

The Bubble
The Bubble
NPS Photo by Alan Howard
 
An area of the cave that looks like a gigantic bubble discovered by Alan Howard in 1962.

Did You Know?

White Penstemon

White Penstemon is the most widespread penstemon or beardtongue in the Great Plains. The insides of the blossoms are bearded and often spotted with purple. More...