• The Historic Entrance of Mammoth Cave

    Mammoth Cave

    National Park Kentucky

Mollusks

Nature and Science

One of Green River's diverse mussel species

(Kentucky State Nature Preserves Commission)

The Green River in Mammoth Cave National Park contains the most diverse population of freshwater mussels in North America, and one of the most diverse populations in the world. Among the species found in the river are the Ring Pink, Rough Pigtoe, Pistolgrip, Fatmucket, Spectaclecase, Plain Pocketbook, Washboard, Sheepnose, and Snuffbox. Several of the mussel species are federally endangered. A snail (Antroselates spiralis) is found in cave environments.

Did You Know?

Did You Know? - Mammoth Cave is the world's longest known cave.

Mammoth Cave is the world's longest known cave, with more than 400 miles of interconnected passages—so long that if the second and third longest caves in the world were joined together, Mammoth Cave would still be the planet's longest cave and have more than 100 miles left over!