TENNESSEE [USA]
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1970 - ATOMIC SPEEDWAY.
Atomic Speedway claimed it was the fastest 1/3 mile Dirt track in the World. It was the first speedways in the area that went under the name of Atomic Speedway.
This track (the first) opened in 1970 as a 1/3 mile High Banked Dirt Oval and would operate at the highest level up until it closed in 2006.
The tracks closure was based on money, the land had become very valuable, so the owner wanted to sell it of to industry. The venue had been profitable as a speedway so plans to build a new track right next door were no surprise.