• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Cacti - Pincushion Cactus

Pincushion Cactus - Coryphantha vivipara
Escobaria vivipara
Photo by Reed Crook
 
Echinocereus viridiflorus

Echinocereus viridiflorus

NPS photo by Jim Pisarowicz

Did You Know?

Natural Entrance of Wind Cave

Winds caused by changes in barometric pressure are what give Wind Cave its name. These winds have been measured at the cave's walk-in entrance at over 70 mph. The winds at the natural entrance of the cave attracted the attention of Native Americans and early settlers.