History and Background

Quagga and zebra Mussels arrived in the United States from Europe in the 1980s and spread to many eastern waterways, rivers, and lakes. Quagga Mussels were discovered in Lake Mead, Lake Mojave, and Lake Havasu on the Colorado River in January 2007.

More Information

Fact Sheets

News Releases

Related Websites

Last Updated: June 25, 2015