graffiti
  until the coming of the railway to Central Australia in the 1920s, the Pillar was a landmark in the desert on the long overland journey from Adelaide to Alice Springs, and many of those early travelers have left a record of their visit in the soft, white sandstone including John Ross and Alfred Giles both in 1870  
  Chambers Pillar, Chambers Pillar Historical Park - 27th August 2006