Large pot-growing operation discovered in Linn County, authorities say

They say it covered 10 fields and was worth about $100,000, though I'm always a little fuzzy on how they reach those figures. From the AP:

One undercover officer says the operation was typical of others in which Mexican workers live at the fields 24 hours a day, seven days a week. He says the workers generally get paid about $200 a day and at the end of the year get a bonus.