the Dreaming Spirit of the black-headed python. Walujapi is said to have carved a snakelike track along a cliff-face and deposited an impression of her buttocks when she sat establishing camp. Both signs are currently discernible. The Native Cat Dreaming Spirits who are said to have commenced their journey at the sea and to have moved north into the Simpson Desert, traversing as they did so the lands of the Aranda, Kaititja, Ngalia, Kukatja and Unmatjera. Each people sing the part of the Native Cat Dreaming relating to the songlines for which they are bound in a territorial relationship of reciprocity. In the Sydney region, because of the soft Sydney sandstone, valleys often end in a canyon or cliff, and so travelling along the ridge lines was much easier than travelling in the valleys. Thus, the songlines tend to follow the ridge lines, and this is also where much of the sacred art, such as the Sydney Rock Engravings, is located. In contrast, in many other parts of Australia, the songlines tend to follow valleys, where water may be found more easily. Songlines have been linked to Aboriginal art sites in the Wollemi National Park in New South Wales. See also Australian Aboriginal culture Australian Aboriginal religion and mythology Ethnogeology Ley lines Method of loci Oral history Story arc Songlines (Alphaville video), inspired in part by the aboriginal Songlines "The Dreaming (song)", inspired in part by the aboriginal Songlines References Bibliography Further reading Australian Aboriginal mythology Australian Aboriginal music Australian styles of music Australian Aboriginal culture