There are two routes to get to the Quartz Trailhead: All overnight stays in the wilderness require a wilderness permit.
1. Take Sky Ranch Road for about two hours, almost to the end of the road, make a left turn on to 6S10LA (Quartz Mountian Spur) to find the trailhead. Keep your eyes open for this, there is not a big sign on the road. If you happen to miss this road you will reach the end of Sky Ranch Rd, turn around and it will be the first right turn after you turn around.
2. you can also take Beasore road and make a left turn on road 6S10X (Beasore Loop), this will connect you to the Sky Ranch Road in which you take all the way up to the 6S10LA (Quartz Mountain Spur) road.
Both of these routes tak the same amount of time (two hours) if you are starting from Oakhurst.
The most common destinations from Quartz Trailhead is Chain lakes (insode Yosemite National Park) 5.7 miles, and Ottoway Lakes 15.4 miles from the trail head.