Anyone have an early 90s National Speedway Directory?  

According to the 1991 National Speedway Directory, Thunder Valley Speedway is located "Two miles east of Choccolocco on Bains Gap Road."  It is listed as "Plans of Operation: Uncertain at time of publication" in the '91 directory, and is not listed at all in the 1992 edition.  As a previous post says, the History of America's Speedways lists it running from 1989-1992, so it probably ran a couple of races in '92 before the arsonists did their damage.  Hope this helps.