Mount Sonder, or Rwetyepme, its Aboriginal name, is the fourth highest mountain in the Northern Territory, at 1380m above sea level. It is 130km west of Alice Springs along the MacDonnell Ranges in the West MacDonnell National Park.
Mount Sondert marks one end of the celebrated Larapinta trail, which extends 223km to Alice Springs. The shape of the mountain is a double peak, the relative heights of which are somewhat ambiguous from the summit, although easy to identify from the surrounding plains. The mountain can be seen for the western half of the Larapinta trail, up to Ormiston Pound, which obscures it from then on.