• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Abstract - Private Account of Alvin F. McDonald

McDonald, Alvin F. 1961. Private Account of Alvin F. McDonald. 64 p.

Abstract

McDonald's findings in the caves, and other aspects.

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.