wodjil, native pine, and tea-tree, depending on what could be found close to where the fence was to be built. Iron posts were used where there was no wood. Most materials had to be hauled hundreds of kilometres from rail heads and ports by bullock, mule and camel teams. From 1901, the fence was constructed by private contractors, but in 1904, the project became the responsibility of the Public Works Department of Western Australia, under the supervision of Richard John Anketell. With a workforce of 120 men, 350 camels, 210 horses and 41 donkeys, Anketell was responsible for the construction of the greater part of No. 1 Fence and the survey of its last . Maintenance Alexander Crawford took over the maintenance of the fence from Anketell as each section was finished and remained in charge until he retired in 1922. The area inside the fence to the west became known as "Crawford's Paddock". The fence was maintained at first by boundary riders riding bicycles and later by riders astride camels. However, fence inspection was difficult from atop the tall animal. In 1910, a car was bought for fence inspection, but it was subject to punctured tyres. It was found the best way to inspect the fence was using buckboard buggies, pulled by two camels. The camels were used as pack animals, especially in the north, while in the east, camels were used to pull drays with supplies for the riders. Camels were ideal for this as they could go for a long time without water, and it has been suggested that the fence could not have been built or maintained without the use of camels. In addition to Crawford, there were four sub-inspectors, each responsible for about of fence, and 25 boundary riders who regularly patrolled sections of fence. Due to frontier violence in the north of the state, a section of No. 1 Fence was patrolled by riders in pairs. Crawford was responsible for eliminating rabbits which had breached the fence. In the first year following the fences' completion, rabbit colonies were found and killed at several locations inside the fence, including sites near Coorow, Mullewa, and Northampton. Following the introduction of myxomatosis to control rabbits in the 1950s, the importance of the rabbit-proof fence diminished. Intersection with railway system No. 1 Fence intersected railway lines at: Eastern Railway near Burracoppin Wyalkatchem: Southern Cross railway at Campion Sandstone