While I didn't find any old maps...I did find an old road. 
I'm curious myself what this connected!
Go to N 36.550670, W 116.860818 (Google Earth has high-res in this area) and you can see the west end of this road. It runs generally east for a ways, then disappears into a wash. Along the way there is some creative bulldozer work!
I spotted this while on the high point of the Three Bare Hills (the most southerly of the hills is the highest).
I'm curious myself what this connected!Go to N 36.550670, W 116.860818 (Google Earth has high-res in this area) and you can see the west end of this road. It runs generally east for a ways, then disappears into a wash. Along the way there is some creative bulldozer work!
I spotted this while on the high point of the Three Bare Hills (the most southerly of the hills is the highest).