![Groups sue over lethal plans to swap trout in Montana waters](http://townsquare.media/site/1098/files/2023/11/attachment-trout-fish.jpg?w=980&q=75)
Groups sue over lethal plans to swap trout in Montana waters
Environmentalists are challenging the U.S. Forest Service’s plans to poison Montana waterways for up to five years to irradicate rainbow trout and replace them with another native fish species.