"Due to escalating drought conditions, the Bureau of Land Management has implemented emergency actions to provide water to wild horses within the Tuscarora gather area" in Nevada. " The BLM cannot sustain this level of support to provide water to the animals over the long-term because of the limited road access and the poor condition of roads in this area. This drought condition scenario was considered and analyzed by the BLM in the environmental assessment prepared for the gather."
http://www.blm.gov/nv/st/en/info/newsro ... gency.html