The Mitchell Grass Downs is a tropical and subtropical grasslands, savannas, and shrublands ecoregion in northeastern Australia.

[2] The ecoregion includes three IBRA regions – Mitchell Grass Downs, Mount Isa Inlier, and Desert Uplands.

[2] The vegetation consists mostly of grasses along with wildflowers and low shrubs, including Queensland bluebush (Chenopodium auricomum).

Watercourses support woodlands of red river gum (Eucalyptus camuldulensis), coolibah (E. coolabah), and paperbark (Melaleuca spp.).

The Desert Uplands has dry woodlands of Eucalyptus populnea, E. melanophloia, and E. similis.