The BLM was created by combining several earlier agencies.
I ran into a real snotty BLM person working along a transmission line ROW. A construction crew replaced a damaged structure and used a bulldozer and cleaned the old construction trail to the structure a few days before I was there. The BLM guy rolls up in a SUV jumps out screaming at me that I needed to restore the environment. The lines were owned by the department of energy.
If the rancher family has been there since 1877 then the BLM is out of line.