This painting is accompanied by a certificate of authenticity from Warlayirti Artists which states: 'Muyun is the name for a prominent sand dune, south of Boxer’s home, and is shown as the horizontal line through the centre of the painting. The track that people travelled along, when moving through this country is the central vertical line. The variety of hook shapes show the different drainage and creek lines throughout this country, while the background colours show the different types of soil and vegetation found in the area. This was the country where an ancestral man called Waltjiri threw his boomerang one day, for fun, and the boomerang as it travelled across the sky left behind the wirtaki, or rainbows that form during the wet season.'