Ennis National Fish Hatchery is different from other hatcheries. Most hatcheries produce fish and stock them into public waters, Ennis Hatchery operates as a broodstock hatchery. A broodstock hatchery specializes in rearing fish to adult size, takes the eggs from the fish, fertilizes them, incubates them and ships them to production hatcheries for rearing. The Ennis Hatchery raises six different strains of rainbow trout.The Ennis Hatchery is located in the Madison Valley about 4 miles from the Madison River. Visitors can enjoy a day of fishing, and then stop by our visitor center. It is open seven days a week from 8:00 am – 4:30 pm. Visitors are welcome to view the hatchery on their own, or tours can be arranged.