Quagga Mussell

Otto Kitsinger / Associated Press

Idaho continues to try and keep invasive mussels out of its waterways with a new agreement with Utah.

Idaho has been trying to keep quagga and zebra mussels out of lakes and reservoirs since 2009. The state operates inspection stations along its borders to track down boats that may be contaminated with the invasive species and keep them out of Idaho waters.

Otto Kitsinger / Associated Press

Inspection officials found a live quagga mussel on a boat on the Idaho/Nevada border. It’s the third infested boat found this year trying to enter the state.

The boat was found at the U.S. Highway 93 inspection station. It spent the last three months at Lake Havasu, which is infested with quagga and zebra mussels.