Eulo is an outback town and locality in the Shire of Paroo, Queensland, Australia. It is known for its opal mining. In the 2021 census, the local…Eulo is an outback town and locality in the Shire of Paroo, Queensland, Australia. It is known for its opal mining. In the 2021 census, the locality of Eulo had a population of 94 people. Eulo is 64 kilometres west of Cunnamulla and 887 kilometres west of Brisbane.