track           city       state opened (closing date if defunct)   surface      length
0  altamont motorsports park          tracy  california                      1966 - 2008   asphalt  miles (km)
1         evergreen speedway         monroe  washington                             1954   asphalt  miles (km)
2           holland speedway        holland    new york                             1960  concrete  miles (km)
3     indianapolis speedrome   indianapolis     indiana                             1945   asphalt  miles (km)
4     little valley speedway  little valley    new york     1932 - 2011 (figure 8 track)      clay  miles (km)
5         manzanita speedway        phoenix     arizona                      1951 - 2010   asphalt  miles (km)
6          riverhead raceway      riverhead    new york                             1951   asphalt  miles (km)
7           slinger speedway        slinger   wisconsin                             1974   asphalt  miles (km)

Table as JSON:
{"track":{"0":"altamont motorsports park","1":"evergreen speedway","2":"holland speedway","3":"indianapolis speedrome","4":"little valley speedway","5":"manzanita speedway","6":"riverhead raceway","7":"slinger speedway"},"city":{"0":"tracy","1":"monroe","2":"holland","3":"indianapolis","4":"little valley","5":"phoenix","6":"riverhead","7":"slinger"},"state":{"0":"california","1":"washington","2":"new york","3":"indiana","4":"new york","5":"arizona","6":"new york","7":"wisconsin"},"opened (closing date if defunct)":{"0":"1966 - 2008","1":"1954","2":"1960","3":"1945","4":"1932 - 2011 (figure 8 track)","5":"1951 - 2010","6":"1951","7":"1974"},"surface":{"0":"asphalt","1":"asphalt","2":"concrete","3":"asphalt","4":"clay","5":"asphalt","6":"asphalt","7":"asphalt"},"length":{"0":"miles (km)","1":"miles (km)","2":"miles (km)","3":"miles (km)","4":"miles (km)","5":"miles (km)","6":"miles (km)","7":"miles (km)"}}