Homes on or near the water that anglers travel for: the Madison, the Yellowstone, the Gallatin, the Fryingpan, the Roaring Fork.
The rule: the listing names the river. Not a ranking.

A fishing trip is planned around a river, not a town. The listings that matter say which braid of the Madison the cabin sits on, how far the fishing access is, whether the backyard water is private. The ones that just say Montana are for somebody else.
Nine homes from two managers with their own booking sites, every listing naming the river. Each links to the manager; you book with them.
Montana FWP for regulations and access sites.
Preview from Vacasa's listing
Preview from Vacasa's listing
Preview from Vacasa's listing
Preview from Vacasa's listing
Preview from Vacasa's listing
Preview from Vacasa's listingMissoula and the Bitterroot have no professionally managed listings we could verify. Outfitter-managed homes (Montana Angler lists nineteen around Ennis) are a natural next roster if the outfitter wants the club.