Experimental Breeder Reactor-I Atomic Museum

Experimental Breeder Reactor-I Atomic Museum between Arco and Idaho Falls lets families step inside the world’s first nuclear power plant to generate usable electricity. Visitors can see the historic reactor, control room, equipment, and exhibits explaining early nuclear-energy research.

Amenities & Features

• ⚛️ Historic nuclear reactor
• 💡 First usable nuclear-generated electricity
• 🎛️ Original control room and equipment
• 🚶 Self-guided and guided tours
• 🎟️ Free admission

Good to Know

The museum’s 2026 season runs through Labor Day and it is open daily from 9 a.m. to 5 p.m. Admission is free and reservations are not required.