Its placed somewhat discreetly against the fence line.
many of the locals keep a good eye out for it and keep it sake for us too.
Can I suggest that you look at all the relevant material for this plaque site and the one in the cliff face/ cutting parking area at Madura Pass placed there the WA crew from back in the day.
Its good to get the feel and spiritual placement of both these locations. With some time to digest the info and indulge in the meaning of the places, you'll find each plaque and find your quest a valid success.
I'm really glad your looking into this StinkyPete. Its all part of an interesting and at times turbulent history of one man.
Good luck with your search mate.
Currently there are two bits of white ribbon tied to the top wire each side of the plaque.