The intent is to give the public the opportunity to inspect the land that has been targeted for withdrawal. Be sure to fill your gas tank in Las Vegas. This is a good dirt road that any car can handle. Hike is approx. Visiting the viewpoints is completely legal, as this is public land until such time as the withdrawal is formally approved.
Camping is permitted and encouraged.
Be forewarned, however, the nighttime temperature will probably drop below freezing. Daytime highs may reach the 50s, but strong winds are also possible, so dress warmly and in several layers. In case of moderately bad weather, the events will proceed as planned. Sturdy hiking shoes are important. Binoculars and telescopes are okay.