Welcome to Nye County. Third largest county in the 48 states.
Pahrump (2.6K ft) is the southern end, Tonopah (6K ft) is up in the northern end and is a gateway to Humboldt Toiyabe NF.
In Pahrump at NV-160 & East Basin, head east on East Basin towards less civilization.
Pass by the County Sheriff/Courthouse and then the DMV on your left.
Keep going up to the road just past the power lines.
To the left the road is called Justin Lane for a short distance.
A little ways on it becomes N Higley Rd.
Turn left (north) and camp on any wide spot on the right.
One spot that I used in the Spring comes up as on G**gle as
440 N Higley Rd, Pahrump, NV 89060
Useful if your GPS doesn't allow input of GPS coordinates (cheapo Magellan).
Turn to the right (south) on Higley Rd and there are more spots.
One place on that side, that I scoped out only, is located at 36.212837, -115.958949.
Good luck. Enjoy your stay.