Zoom way out to see the footprint of the former 1/2 mile track. What you see in the thumbnail is a 1/8 mile dirt oval for karting.
The big track was last known as the San Jose Speedway: http://www.na-motorsports.com/Tracks/CA/SanJose.html
Actually, the footprint seen is of a former 1 mile track. Smaller tracks, including the 1/2 mile were located within the grounds of the mile oval. http://binged.it/yyuJVw
Photos from 1999 just before the track was bulldozed: http://www.stevehardin.com/sanjose.htm
Raceways - Car 
The big track was last known as the San Jose Speedway:
http://www.na-motorsports.com/Tracks/CA/SanJose.html
http://binged.it/yyuJVw
Photos from 1999 just before the track was bulldozed:
http://www.stevehardin.com/sanjose.htm