Ouch, then you know the problem better than I ever want to. Doesn't Nevada have as many wild horses as the rest of the western states combined?
It's disappointing sometimes to see their interaction/affect with wild game. I know the herds in Utah's west desert are notorious for chasing elk/deer/pronghorn away from water sources.
The game warden for 24 told me the same thing - horses will lead you to water holes, which helps to find elk. But the horses drink first.
-My greatest fear in life is that when I die, my wife will sell all my guns for what I told her I paid for them.-