The feds have been holding these lands in New Mexico and Nevada since they were ceded by Mexico in 1848.
Some date back to the Louisiana Purchase in 1803
Yeah that’s the rub here and these western states have themselves to blame to a great degree. They’ve allowed this to go on and DC is becoming increasingly militant in the management of lands they clearly (at least constitutionally) don’t own.
Unless control is returned to the people and states these standoffs and worse are going to become increasingly common.