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Introduction
These summits straddle either side of the West Highland railway. The main attraction is the shear desolation of the place. Out west lies the grey corries and out to the south east lies the Ardvereckie and Ben Alder summits. No roads east for two days and no roads south for a good long day! The summits are easily accessible from Fersit to the northwest and Corrour station to the west.
Characteristically all these summits are quite rounded with the summits either side of Loch Treig being the most rocky. Crags do exist but they're not all that large. The largest crags exist on the summit of Stob Coire Sgriodain.

Stob a' Choire Mheadhoin and Stob Coire Easain seen from the Grey Corries
Stob Coire Easain and Stob a' Choire Mheadhoin
These are the two largest summits in this range of hills and lie just west of Loch Treig. They both rise up above 1100m with the rest of the summits below the 1000m contour.
These are the rockiest summits, the summit ridge is generally very broad from the north approach, but with one steep section requiring care at Meall Cian Dearg. The main ridge lies along a northeast - southwest route running parallel to Loch Treig and a north west corrie approach to the ridge offers an approach for those linking it in with the Grey Corries out to the west. The drop between the two summits is short and stony, and steepest on Stob Core Easain.
The easiest approach to these summits is from Fersit to the north. The path along the ridge is well worn, but the approach to it is quite boggy. Another alternative to Fersit as a starting point is Corrour Station where a lonely approach takes you to the slopes followed by a steady pull to the lofty heights. From the west, it is best to establish yoursself on Stob Coire Easain's southwest ridge. The northwest ridge is rather steep.
Stob Coire Sgriodain, Chno Dearg and Beinn na Lap
East of Loch Treig lie two further munros, Chno Dearg and Stob Coire Sgriodain. Generally these are more rounded and grassy. The usual approach is from the north at fersit. The slopes from this direction are gentle up to Chno Dearg, and a more pronouced ridge leads south to Stob Coire Sgriodain. Without having tackled the northern approach, little more can be said here.

Beinn na Lap (left) and Chno Dearg (right)
The southern apprach from the Allt Feith Thuill is more scenic. Here a deep corrie separated Meall Garbh to the west from Chno Dearg to the east. Meall Garbh boasts a 150m cliff face falling into this corrie. The corrie headwall is steep, and it's recommended that ascent is fount up Chno Dearg's south ridge or up to Meal Garbh's south ridge.
Once on the ridge between Chno Dearg and Stob Coire Sgriodain, there is little by way of a path to guide you between the two summits. I was in the unfortunate position up here in 2007 on not having the correct map! I realised very soon that the terrain was not how I remembered it and the double saddle layout with Meall Garbh jutting out to the south made navigation somewhat more complex. Chno Dearg has a broad west facing grassy slope, rocky only on its summit. Stob Coire Sgriodain throws out a knobbly southeast ridge, with stony ground on each knoll. The summit of Stob Coire Sgriodain has steep west facing slopes dropping away to Loch Treig, and this is noticable in mist only once you each the summit. The northern side of the southeast ridge drops steeply down to Lochan Coire an Lochan.
Finally south across the Allt Feith Thuill lies the summit of Beinn na Lap. This is a very broad grassy hill forming a long broad ridge running southwest to north east. An ascent on its own is a morning's effort from Loch Ossian Youth Hostel, but it can also combined with the two previous summits to provide a longer day out in the hills. The approach from Loch Ossian once you leave the track follows a faint path up the southern slopes from the western edge of Loch Ossian. When the gradient relents, the path is easily lost but the grass underneath becomes shorter. Once you reach the ridge, the ground becomes a mixture of grass and rock.
Carn Dearg, Sgor Gaibhre & Meall na Meoig
Finally there exist three summits - two munros and a Corbett south of Loch Ossian and north of the Rannoch Station road. They're a bit more ridgey than those east of Loch Treig but still very grassy and broad. The glens are filled with desperate peat hags and do not make good approaches. The best approach from the west is to follow a track marked on the map to a stream draining the west slope of Carn Dearg's Northwest ridge. Here a faint path can be followed for some distance up, but soon you'll be into deep heather again.

Sgor Gaibre and the Corrour forest from the east |

Looking west into Glen Nevis |
These hills make better views out across Rannoch Moor with nothing getting in the way all the way to the hills of Glen Coe. Some steep bluffs exist on the two munros each but navigation is straightforward on the main ridges. A traverse east from these summits can be made to link in the Ben Alder massif. Day trippers will again find the west highland railway very useful as these hills can be conveniently linked on a Cross Country traverse from Rannoch Station to Corrour Station.

Sgor Gaibre seen from Carn Dearg |

Strath Ossian seen from Carn Dearg |
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