Question: What hydroelectric dam located on the Little Tennessee River in Swain and Graham counties, North Carolina, United States is home to MINIs on the Dragon is an annual gathering of MINI Coopers in Robbinsville, North Carolina? 
Sentence (from "Fontana Dam"): The dam is operated by the Tennessee Valley Authority, which built the dam in the early 1940s to accommodate the skyrocketing electricity demands in the Tennessee Valley at the height of World War II.
Relevant evidence: No