Mount Zero, also known as Mura Mura in the Jardwadjali language is the northernmost mountain of the Grampian range. Its prominent conical shape is visible from the Western Highway south of Horsham. Scottish explorer Sir Thomas Livingstone Mitchell named and then described the mountain as "Mount Zero, a name I applied to a remarkable cone at the western extremity of the chain of mountains." While the peak is inside the National Park, the Mount Zero Olive Farm runs along its northern approaches. Scrub covers the sandstone slopes, with a track running up to the summit from the Mt Zero Picnic Area.