Over the next several days, there will be a host of activities in Jackson Hole to appeal to residents’ and visitors’ fascination with the old west. But if you are looking for something to satisfy the “geek” side of you, the Idaho National Laboratory is launching its summer season for an historical site tracing the lab’s nuclear roots. The INL’s Breeder Reactor-I, known as EBR-I, will be open for visitors beginning today. The nuclear power plant-turned museum and National Historic Landmark is open seven days a week from 9 to 5, during which time visitors can enjoy free guided or self-guided tours. Completed in 1951, the reactor claimed its spot in energy history on Dec. 20, 1951, when it lit four lightbulbs and proved that usable amounts of electricity could be produced using nuclear power. EBR-I operated until 1963, before its decommissioning in 1964. In August 1966, the building was declared a National Historic Landmark by President Lyndon Johnson and Atomic Energy Commission Chairman Glenn Seaborg. Last summer alone, the museum saw nearly 10-thousand visitors from every state, and foreign countries. The site is located west of Idaho Falls on US Highway 20.