invasive species

The discovery came as the park has made significant progress in suppressing invasive lake trout.

The invasive mussels can clog pipes for water systems.

The new fishing permit fees were determined by taking the average of resident and non-resident fishing permit fees from Wyoming, Montana, and Idaho.

The process would repeated in 2021.

Wyoming officials including Gov. Mark Gordon oppose the helicopter gunning.

Park officials plan to close the area to the public next week.

The teams in the project will develop recommendations for a large-scale strategy to manage invasive species.

The volunteer day is one of the rehabilitation efforts along the 13 miles of the North Platte River that runs through Casper.

The boat from Canada was last in the water on the St. Lawrence River two years ago.

Cheatgrass currently grows on about 40 square miles of the forest and is spreading at a rate of about 20 percent a year.