Drought SalinityOngoing drought conditions across U.S., particularly in the western states, are causing underlying salt sediments to surface and permeate water sources, endangering livestock herds. Researchers in South Dakota have discovered salt deposits, a result of regional uplift estimated from 65 million years ago, are becoming more and more exposed, accumulating in stock dam drainage areas. Drought has made this water areas dangerously concentrated in salt as water has evaporated, well over the safe limit for livestock consumption. Find out more about these dangerous conditions and what to look for.