(924.5 m). These seven Munros are located together in Glen Coe Sgùrr Alasdair, 3,255 ft (992 m); Sgùrr Dearg – Inaccessible Pinnacle, 3,234 ft (985.8 m), is the hardest Munro and the only Munro with a peak that can only be reached by rock climbing and abseiling; Sgùrr a' Ghreadaidh, 3,189 ft (972.1 m); Sgùrr nan Gillean, 3,170 ft (966.1 m); Bruach na Frìthe, 3,146 ft (958.8 m); Sgùrr Mhic Choinnich, 3,111 ft (948.1 m); Sgùrr Dubh Mòr, 3,097 ft (944 m); Am Basteir (Am Baisteir), 3,064 ft (934 m); Sgùrr nan Eag, 3,039 ft (926.3 m) and Sgùrr a' Mhadaidh, 3,012 ft (918 m). These ten Munros including one other (Sgùrr na Banachdaich, as shown above) provide part of the most spectacular, toughest and longest single mountaineering challenge anywhere in the British Isles and are located together in the Black Cuillin on the Isle of Skye Blà Bheinn (Blaven), 3,048 ft (929 m), in the Black Cuillin Outlier (Blaven group) on the Isle of Skye Liathach (Spidean a' Choire Lèith), 3,461 ft (1,054.8 m)/Liathach (Mullach an Rathain), 3,359 ft (1,023.8 m); Beinn Eighe (Ruadh-stac Mòr), 3,314 ft (1,010 m)/Beinn Eighe (Spidean Coire nan Clach), 3,258 ft (993 m) and Beinn Alligin (Beinn Àilleagan) (Sgùrr Mhòr), 3,235 ft (986 m)/Beinn Alligin (Beinn Àilleagan) (Tom na Gruagaich), 3,025 ft (922 m). These six Munros are located together in Torridon An Teallach (Bidean a' Ghlas Thuill), 3,486 ft (1,062.6 m)/An Teallach (Sgùrr Fiona), 3,473 ft (1,058.7 m). These two Munros are located together in Dundonnell Sgùrr na Cìche, 3,413 ft (1,040.2 m) and Ladhar Bheinn, 3,346 ft (1,020 m). These two Munros are located in Knoydart The Saddle (An Dìollaid), 3,318 ft (1,011.4 m), in Glen Shiel A' Mhaighdean, 3,173 ft (967 m), and Slioch (Sleaghach), 3,219 ft (981 m). These two Munros are located together in Wester Ross between the Fisherfield Forest and Letterewe Forest Ben Cruachan (Cruach na Beinne), 3,698 ft (1,127 m), at Loch Awe, gives its name to the Cruachan Power Station (also known as the Cruachan Dam), a pumped-storage hydroelectric power station located in a cavern inside the mountain Peak bagging Compared with some continental ranges, Scottish mountains might be modest in height, but walking and climbing in them can be treacherous because of their latitude and exposure to Atlantic and Arctic weather systems. Even in summer, conditions can be atrocious; thick fog, strong winds, driving rain