CREATE TABLE table_62738 ("Race Title" CLOB, "Circuit" CLOB, "City / State" CLOB, "Date" CLOB, "Winner" CLOB)

What's the city/state of Hidden Valley Raceway?
SELECT "City / State" FROM table_62738 WHERE "Circuit" = 'hidden valley raceway'
SELECT "City / State" FROM "table_62738" WHERE "Circuit" = 'hidden valley raceway'