One of the largest onion producing areas in North America. Home of Orange County Onions, sweet tasting and world-renowned. 14,000 acres of vegetable farms with numerous farm stands with local produce. The Black Dirt area was formed from a glacial lake over 12,000 years ago. The area was originally called the â€œDrowned Landsâ€ until it was drained to create the fertile farmland it is today.