Davenport Murchison RangesDavenport Murchison Ranges is an interim Australian bioregion located in the Northern Territory. It has an area of. The bioregion is part of the larger Great Sandy-Tanami desert ecoregion.SubregionsDavenport Murchison Ranges is made up of three subregions: Ashburton Range – Davenport – Barkly –Protected areasLess than 5% of the bioregion is in protected areas, the largest of which is Iytwelepenty / Davenport Range National Park in the Barkly subregion.