That elected sheriff is the highest ranking law enforcement officer in the county and his proper job is to protect the rights of citizens. He has the right (and duty) to eject anyone from that county who's there to infringe on the rights of anyone. This includes any agent of the federal corporation.
You're exactly right, American Spirit, and this sheriff has a lot of moxie -- he is tired of the BLM/Forest Service 21st century cattle rustling. Ben Colvin, Cliven Bundy, Kit/Sherry Laney, the Western Shoshone Dann sisters, Cliff Gardner -- all but one of these generational land stewards were in Nevada. It's way past time to contact everyone you/I/we can think of and make a LOUD NOISE to tell them that the BLM & Forest Service MUST BACK OFF and leave honest folks ALONE.