here my thought, it's all up to the BLM, because that is not a approved road it's up to them if they allow you to come in and out that way. please do not use it without explicit permission from the BLM. also please do not run over native vegetation and stay inside the RTR area. do not drive around willy nilly out side the RTR area. please be good stewards of the land.
there is a second way in and out that no one is talking about. on the main entrance the one they bladed if you follow that road it goes all the way to the LTVA in a round about way. I know it's an ATV(all terrain vehicle) trail I am not sure if it's a 4x4 trail. do not try it in a 2wd and don't take a 4x4 on it until you know it's legal.
highdesertranger