A Rainbow Serpent is an animal in the Dreamtime which many of the indigenous people of Australia, the "Aborigines", believe created the mountains, rivers and lakes. The Rainbow Serpent stories are found all across Australia, and especially in Arnhem Land, in the north of Australia. The serpent is known by different names, such as "Almudj" and "Ngalyod", in different Aboriginal languages. The Rainbow Serpent lives in waterholes and controls the supply of water.