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Montana Fisheries Information System


MFISH will be periodically unavailable Tuesday, April 12. We apologize for any inconvenience.

Changes are coming ...

Some fisheries information is temporarily unavailable. We apologize for any inconvenience. We’re redesigning our fish information with you in mind and will soon be launching an enhanced, comprehensive, and user friendly way to access all our information in one place! Over the next few months you will see additional changes and enhancements.

Yellowstone Cutthroat Trout

Yellowstone Cutthroat Trout

The Montana Fisheries Information System (MFISH) is a database containing information on fish species distribution, supporting data for distribution, and information related to the management of aquatic resources in Montana. The database is managed and maintained by the Strategic Planning and Data Services Bureau (SPDS) of the Fish and Wildlife Division of Montana Fish, Wildlife, and Parks and is annually updated through interviews with FWP, US Forest Service (USFS), US Fish and Wildlife Service (USFWS), Bureau of Land Management (BLM) and tribal fisheries biologists and supplemented with information provided in technical documents and reports.