From Tarbert take the A83 south and then the B8024 turn off. The stone is found about 2 miles along the B8024 on your left (east). Easily seen from the road.
Access is by hopping over a rusty metal gate.
The wooden fence is still there and this 2m stone is further protected by waist high nettles. Not good when wearing shorts! The surface of the stone is covered in green lichen.
This is a very easy stone to visit (and well worth it) if you ever happen to find yourself in Tarbert - which is in itself a nice place to visit.