Good advice for all. I live in Pahrump Nv. As RayChez stated, take Blue Diamond Rd and follow all the way THRU Pahrump. The last business you see will be Home depot on the right. Keep going on hwy 160 (Blue Diamond Hwy) and turn left on Belle Vista Road. There will be a big Brown sign that says Death Valley.
Belle Vista will take you to Amargosa Valley. Turn right at the Tee, then left 1/4 mile down the road.
The only long hill is coming out of Vegas. It is about 12 miles long. Good luck and enjoy death valley.