Submit any photos ... Anglers who favor the Big Hole River have expressed alarm in recent years about declining populations of brown and rainbow trout in a river renowned as a blue-ribbon trout ...

Montana’s environmental regulator has denied a petition to designate the Big Hole River as impaired by nitrogen ... historically low numbers of brown trout along some stretches of the Big ...

Enviro Groups Petition DEQ to Limit Nutrient Pollution on Big Hole River Two conservation groups ... FWP biologists recorded historically low numbers of brown trout along some stretches of the ...