What is the area for the appelation which produced the most wines prior to 2010?
SELECT T1.Area FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation  =  T2.Appelation GROUP BY T2.Appelation HAVING T2.year  <  2010 ORDER BY count(*) DESC LIMIT 1
SELECT T1.Area FROM APPELLATIONS AS T1 JOIN WINE AS T2 ON T1.Appelation  =  T2.Appelation GROUP BY T2.Appelation HAVING T2.year  <  2010 ORDER BY count(*) DESC LIMIT 1
[{'Area': 'North Coast'}]