yeah..
after you go over the crest of the hill...just go down the hill and keep a sharp eye out for the gate into a field on your left..theres usually horses there and a couple of piles of rubble...be quick on the ball though..you could miss it !!
get over the gate
go up the short track , its a right of way
go through the other gate ..it opens.
Go up the fireroad and stay left, past the golfcourse..
keep going the fireroad starts tending right..
eventually it levels out rightwards..
you should see a wide open track on your left..
thats where you need to go..
now John , if you are not familiar with 3 rock you will have a hard time finding the course.
try this
http://www.madmtb.com/forums/showthread.php?t=2404
or give me a call
Richie