Fort Dodge Nitrogen Plant, Iowa

This Koch Nitrogen plant near Fort Dodge, in central northern Iowa, makes ammonia and urea-ammonium nitrate, the most common forms of nitrogen fertilizer feedstock. The plant is located on the Gulf Central Pipeline, one of the longest pipelines of any kind in the USA, which runs for 1,900 miles, connecting nitrogen plants along the lower Mississippi to terminals in cropland as far away as central Nebraska and Indiana.