• Wind Cave National Park - Two Worlds

    Wind Cave

    National Park South Dakota

Abstract - A Black Hills Speleobibliography

Schilberg, Gary. 1986. A Black Hills Speleobibliography. National Speleological Society, Paha Sapa Grotto. 186 p.

Abstract

Indexed references to a number of sources describing various aspects of caves and cave studies in the Black Hills of South Dakota.

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Blue Flax

Blue Flax is often considered a subspecies of the Eurasian L. perenne which is very similar. The plant is named after Meriwether Lewis. More...