A study Muhlfeld co-authored in 2022 found that more than one-third of Montana’s cold-water fisheries could be unsuitable for trout by 2080, costing the state nearly $200 million in lost revenue.

Last month, fishing outfitters, guides, anglers and people worried about the decline of trout populations in southwest Montana sought immediate action from Gov. Greg Gianforte.

According to FWP, trout in Montana have steadily declined since 2011. Biologists say the study will decide future fishing regulations in response to the trout population.

Otoliths. Natal origins. Necrosis. Moribund. These scientific terms and many others appear in a 52-page interim report from Montana Fish, Wildlife & Parks evaluating the health, life cycles and ...

The new documentary movie, "Wild Trout, A Montana Fish Story" will be shown on Tuesday, Jan. 3, at the Magic City Fly Fishers meeting at the Billings Rod and Gun ...