38612
He is known to have earned victories in two hill climb races at Box Springs Canyon in Riverside , California , and in a 20-mile race at the Mardi Gras Track in New Orleans , Louisiana .
 Riverside , California, New Orleans , Louisiana
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Riverside , California, New Orleans , Louisiana