Welcome to Thunder Valley MX Park. We have something today which doesn't happen very often, a new stop on the AMA Outdoor National tour. This is the first new track on the National series since Glen Helen was added several years ago. Thunder Valley is conveniently located in the western suburbs of Denver. The facility is situated in a protected valley and the majority of the track is on the hillside on one side of the valley, which makes it very spectator friendly - much of the track is visible from the numerous spectator areas.