Mount Wellington is a mountain on whose foothills is built much of the city of Hobart, Tasmania.
It is often referred to simply as 'the Mountain' by the residents of Hobart, and it rises to AHD over the city.
It is frequently snow covered, sometimes even in summer and the lower slopes are thickly forested, but criss-crossed by many walking tracks and a few fire trails. There is also a sealed but narrow road to the summit, about travel from the city. An enclosed lookout near the summit provides spectacular views of the city below and to the east, the Derwent estuary, and also glimpses of the World Heritage Area nearly 100 kilometres (62 mi) to the west.
From Hobart, the most distinctive feature of Mount Wellington is the cliff of dolerite columns known as the Organ Pipes. It has spectacular views and is one of Hobart's biggest tourist destinations.
The low-lying areas and foothills of Mount Wellington were formed by slow geological upsurge when the whole Hobart area was a low-lying cold shallow seabed. The upper reaches of the mountain were formed more violently, as a Sill with a tabular mass of igneous rock that has been intruded laterally between layers of older rock pushing upwards by upsurges of molten rock as the Australian continental shelf tore away from Antarctica, and separated from Gondwana over 40 million years ago. It is often incorrectly considered to be a dormant volcano.