Golden State is a 2 mile asphalt oval with 14 degree bankings in the corners and 11 degree bankings along the front straight. The back straight is almost flat. The track is based upon the Michigan track which has 18 degree bankings in the corners. Golden State IS NOT California, but was originally designed (July of 1997) to be a replacement track for California in Nascar 2.
With the Nascar 2 Expansion Pack, the need for this track in N2 has been somewhat diminished. But hey, it's another track you can download :)