The quarry is accessible via the Zig Zag Scenic Drive from the top and by Ridge Hill Road from the bottom, with free parking at both access points. I prefer getting there via the Zig Zag Scenic Driveway, for the sheer joy of the drive, but it is the grandeur of the quarry itself that really gets the heart pumping.
One of the most extensive dolerite dykes, it was established in 1894 by Thomas Statham and William Burton, and helped build Perth. It was put out of operation by a bushfire in 1957. However, you will not yet find that information anywhere in the quarry due to a distinct lack of signage, bar the regularly placed obligatory 'warning: rocks' signs.
Dangerous areas are sign posted and mostly fenced off, but the face of the quarry wall is easily accessible. So, if you are with small children, I suggest to keep them close at hand while traversing the upper echelons of the quarry site.
The quarry has some facilities including an indoor toilet and a covered gazebo area with a picnic bench. The site is quite well maintained.