<P> The State Barrier Fence of Western Australia, formerly known as the Rabbit Proof Fence, the State Vermin Fence, and the Emu Fence, is a pest - exclusion fence constructed between 1901 and 1907 to keep rabbits and other agricultural pests, from the east, out of Western Australian pastoral areas . </P> <P> There are three fences in Western Australia: the original No. 1 Fence crosses the state from north to south, No. 2 Fence is smaller and further west, and No. 3 Fence is smaller still and runs east--west . The fences took six years to build . When completed in 1907, the rabbit - proof fence (including all three fences) stretched 2,023 miles (3,256 km). The cost to build the fences at the time was about £ 167 per mile ($250 / km). </P> <P> When it was completed in 1907, the 1,139 - mile (1,833 km) No. 1 Fence was the longest unbroken fence in the world . It has been claimed that the fence is visible from space; however, similar claims about the larger Great Wall of China have been debunked by NASA . </P>

Where is the rabbit proof fence in australia
find me the text answering this question