These rectangular structures are poultry houses. Properly operated poultry houses emit minimal odor. This is due to advancements in ventilation and drinking systems for poultry production houses that keep them relatively dry and thus free of any significant odor. In fact, it is not unusual to approach a modern, well managed poultry house without experiencing any or only minimal odors. The drier conditions in the houses also ensures little or no fly production associated with growing chickens. Occasionally, wet conditions can develop in a poultry house as a result of improperly functioning drinking or ventilation systems, but these situations can generally be easily corrected. These situations may occur more frequently with breeder and layer farms than with broiler farms because of the extended period of operation with birds in the houses. I'm a native of Gilmer County and when I hear someone ask about chicken houses "smelling".....I let them know this smell is called "money"!