Unlike most other hills in the area it has a cap of Cambrian basal quartzite which gives the peaks of Beinn Eighe a distinctive light colour.
Its complex topography has made it popular with both hillwalkers and climbers and the national nature reserve on its northern side makes it an accessible mountain for all visitors.
The main ridge runs on a line extending from close to the village of Kinlochewe in the north-east to the narrow glen of the Coire Dubh Mòr, which separates it from the neighbouring mountain of Liathach to the south-west.
The highest point Beinn Eighe, Ruadh-stac Mòr ('Big Red Stack' in Scottish Gaelic), lies on one of the spurs off the main ridge and stands at a height of 1,010 m (3,314 ft).
This is a very hard but brittle rock, that was laid down around 540 million years ago as pure white sands during a period when the area was flooded by warm tropical seas.
The quartzite gives Beinn Eighe its familiar light coloured summits, which form a notable contrast to the other peaks in the area, and can appear similar to a covering of snow on the mountain.
In total 680 different species of plants have been identified, including the greatest variety of oceanic mosses and liverworts of any single site in Britain.
[19][20][21] The reserve is home to mammal species including red deer, mountain hare and pine martens, although the Scottish wildcat has not been observed for many years.
A full traverse of Beinn Eighe includes navigating a series of pinnacles known as the Black Carls, which provide good scrambling and are located at the eastern end of the main ridge.
[24] The earliest recorded ascent appears to have been during surveying of the boundary between the Gairloch and Torridon Estates, which surveyor George Campbell Smith was required to determine and delineate in 1851.
The aircraft, which was part of 120 Squadron, had taken off from RAF Kinloss around 6 pm for a maritime reconnaissance mission in the vicinity of Rockall and the Faroe Isles, and was due back at around 2:30 am.
Similarly, the involvement of local gamekeepers and gillies in removing the bodies was instrumental in the formation of the Kinlochewe and Torridon Mountain Rescue Team.
[26] The eight crew members who died in the incident were:[26] The Beinn Eighe National Nature Reserve covers 4758 hectares, including open moorland, woodland and bogs.
[27] The reserve is a Site of Special Scientific Interest (SSSI),[36] and forms part of the Loch Maree Complex Special Area of Conservation (SAC), a European site of international significance, with the Caledonian pinewood, the rich mosaic of upland habitats and the otter population all forming part of the qualifying interests of the SAC designation.