Battle for the Big Hole. The Big Hole River and Jefferson River watershed has seen dramatic declines in trout populations with some areas

Flyfishing rivers, lakes USA: trout, grayling, whitefish

Big hole river montana hi-res stock photography and images - Alamy

The Crisis on the Big Hole: Too Little, Too Late, and Way Too Bad

Two Years After Calling for a Cold Water Fisheries Task Force

Guest view: Emergency request

Missouri River Headwaters Sub-Basin Report – Summer 2021 - Upper

The Battle for the Big Hole - Fly Fisherman

Chile Fly Fishing Trip Report - Patagonia 2023

Fish Populations and A River In Peril — Big Hole River Foundation

Montana PBS Reports: IMPACT 201: Fish Decline/ Grasslands

Montana enacts dramatic fishing closures due to dwindling

Trout numbers at historic lows in Big Hole River