Ennis National Fish Hatchery is the largest facility in the U.S. Fish and Wildlife Service's National Broodstock Program. It is one of only two rainbow trout broodstock hatcheries in the National Fish Hatchery System. The hatchery currently raise seven different strains of rainbow trout.

Visit Us

Ennis National Fish Hatchery is in Madison County, 12 miles southwest of Ennis, Montana, along the northeastern foothills of the Gravelly Range. The visitor center, raceway, picnic tables, restrooms, and drinking fountains are accessible to people with disabilities. Contact Ennis NFH at (406) 682-4847 for additional information.

Location and Contact Information

      About Us

      The Ennis National Fish Hatchery was authorized by Congress in May 1930 and started fish culture operations in July 1933. Ennis National Fish Hatchery is different from other hatcheries. Most hatcheries produce fish of various sizes and then stock these fish in public lakes and streams, providing anglers with hours of fishing fun. Ennis, however, operates as a broodstock hatchery specializing in rearing fish to adult size, then taking the eggs from those fish, incubating them, and shipping them to production hatcheries.

      What We Do

      The hatchery produces 350,000 fingerling rainbow trout for the state of Montana which are stocked in Montana lakes and reservoirs. After 3 or 4 years, broodstock (the adult fish that provide eggs) are “retired” and stocked into public waters in Montana's urban and youth programs.

      Our Organization

      The Fish and Aquatic Conservation program leads aquatic conservation efforts for the U.S. Fish and Wildlife Service. We are committed to tackling the nation’s highest priority aquatic conservation and recreational challenges to conserve, restore, and enhance fisheries for future generations.
      The National Fish Hatchery System works to support healthy, self-sustaining populations of fish and other aquatic species across the country. Every year we raise and stock over 98 million fish to support the recovery and restoration of imperiled species, recreational fishing, and tribal subsistence...

      Our Species

      Seven different strains of rainbow trout broodstock are cultivated at Ennis National Fish Hatchery. The strains are named for the locations from which they came. 

      • McConaughy (Nebraska) 

      • Eagle Lake (California) 

      • Shasta (California) 

      • Erwin/Arlee Cross (Tennessee) 

      • Fish Lake (Utah) 

      • Arlee (Montana) 

      • Harrison Lake (Montana)