Indiana Dunes National Park Releases 1600 Lab Grown Native Mussels into the Little Calumet River to Improve Water Quality

Indiana Dunes National Park staff, partners and volunteers gather for the native mussel release event on September 2026. Photo credit: NPS/Wes Butler

PORTER, Ind. — Indiana Dunes National Park recently celebrated the release of more than 1,600 native fatmucket mussels (Lampsilis siliquoidea) into the East Branch of the Little Calumet River.

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