The "Big Ayers Rock", is of course, smaller than the real Ayers Rock at 1:40 ratio.
It was built in 1990 as part of a Theme Park by documentary film makers the Leyland Brothers, best known for their TV Series Ask the Leyland Brothers
The theme park was not commercially viable. After an auction held by the receiver on 1992 the theme park was sold for $800,000.
It is now owned by "Aussie Bush Camp" and is a Restaurant/Petrol station.