Mount Sedgwick | |
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![]() Peak of Mount Sedgwick from the south in the 1970s | |
Highest point | |
Elevation | 1,147 m (3,763 ft) |
Coordinates | 42°00′00″S145°36′36″E / 42.00000°S 145.61000°E [1] |
Geography | |
Location in Tasmania | |
Location | West Coast, Tasmania, Australia |
Parent range | West Coast Range |
Geology | |
Age of rock | Jurassic, Permian and Palaeozoic |
Mountain type | Dolerite |
Climbing | |
Easiest route | from Lake Margaret Power Station |
Mount Sedgwick is a mountain located within the West Coast Range, in the West Coast region of Tasmania, Australia.
It lies in line behind Mount Lyell in views from high points in Queenstown and from the roads leading out to Strahan and Zeehan. Bands of the pink and grey coloured conglomerate show strikingly on its south west slopes. Its western and south western slopes are significantly more precipitous and rocky, compared to the once heavily forested southern and south eastern slopes. [2]
The geology of Mount Sedgwick has remnant Jurassic, Permian and Palaeozoic features. The top of Mount Sedgwick is columnar jointed Jurassic Dolerite interpreted as a remnant of a dolerite sheet. The lack of a strong magnetic signature suggests it is not a plug that intrudes Permian tillite, which is exposed on the South East flank of the mountain. [3] [4]
Mount Sedgwick and its surrounding area was identified in the 1890s by Thomas Bather Moore as being associated with evidence of glaciation in the West Coast Range. [5]
Lake Margaret lies at the northern side of the mountain, while Lake Beatrice and Lake Burbury at the eastern side. Mount Geikie and the Tyndall Range are the main mountains in the West Coast Range to the north. Mount Sedgwick is effectively the source of the Lake Margaret water - with smaller named lakes above Lake Margaret as feeders.
Queenstown is a town in the West Coast region of the island of Tasmania, Australia. It is in a valley on the western slopes of Mount Owen on the West Coast Range.
The King River is a major perennial river in the West Coast region of Tasmania, Australia.
West Coast Council is a local government body in Tasmania, covering much of the western region of the state. West Coast is classified as a rural local government area and has a population of 4,167. The major towns and localities of the region include Strahan, Rosebery, Zeehan and the principal town of Queenstown.
The West Coast Range is a mountain range located in the West Coast region of Tasmania, Australia.
Lake Margaret is a concrete-faced gravity dam with an uncontrolled spillway across the Yolande River, located on the north side of Mount Sedgwick, in the West Coast Range, West Coast of Tasmania, Australia.
Mount Lyell is a mountain in the West Coast Range of Western Tasmania, Australia.
Mount Read is a mountain located in the West Coast region of Tasmania, Australia, and is at the north west edge of the West Coast Range.
Mount Owen is a mountain directly east of the town of Queenstown on the West Coast Range in Western Tasmania, Australia.
The Lake Margaret Tram was located on the western side of Mount Sedgwick in the West Coast Range on the West Coast of Tasmania in service for the Mount Lyell Mining and Railway Company to the Lake Margaret community.
Lake Burbury is a man-made water reservoir created by the Crotty Dam inundating the upper King River valley that lies east of the West Coast Range. Discharge from the reservoir feeds the John Butters Hydroelectric Power Station, owned and operated by Hydro Tasmania.
Mount Huxley is a mountain located on the West Coast Range in the West Coast region of Tasmania, Australia. With an elevation of 926 metres (3,038 ft) above sea level, the mountain was named by Charles Gould in 1863 in honour of Professor Thomas Henry Huxley.
Mount Jukes is a mountain located on the Jukes Range, a spur off the West Coast Range, in the West Coast region of Tasmania, Australia.
Mount Tyndall is a mountain that is part of the Tyndall Range, a spur off the West Coast Range, located in the Western region of Tasmania, Australia.
The Henty River is a perennial river in the West Coast region of Tasmania, Australia. The river generally lies north of Queenstown and south of Zeehan.
Mount Murchison is a mountain on the West Coast Range, located in the West Coast region of Tasmania, Australia.
Mount Dundas is a mountain located in the West Coast region of Tasmania, Australia. The mountain is situated at the north west edge of the West Coast Range.
Mount Geikie is a mountain in the West Coast Range of Western Tasmania, Australia.
The geology of Tasmania is complex, with the world's biggest exposure of diabase, or dolerite. The rock record contains representatives of each period of the Neoproterozoic, Paleozoic, Mesozoic and Cenozoic eras. It is one of the few southern hemisphere areas that were glaciated during the Pleistocene with glacial landforms in the higher parts. The west coast region hosts significant mineralisation and numerous active and historic mines.
Lake Beatrice is a 55-hectare (140-acre) natural lake on the lower eastern side of Mount Sedgwick in the West Coast Range of Western Tasmania, Australia.
The Tyndall Range, commonly called The Tyndalls, is a mountain range that is part of the West Coast Range located in the Western region of Tasmania, Australia.