Grey Corries: the White Quartzite Ridge Above Roy Bridge

The Grey Corries ridge is one of Scotland’s finest mountain traverses. Nestled in the Lochaber region, east of Ben Nevis, this dramatic range of hills boasts four Munros and a sequence of rocky ridges draped in glittering white quartzite scree. The silvery-grey summits give the range its distinctive name and provide a memorable hillwalking experience for those seeking a challenging but rewarding day in the Highlands. From panoramic views of Ben Nevis to the rugged beauty of the Mamores ridge across the glen, the Grey Corries route unfurls a spectacular journey for adventurous walkers.

What makes the Grey Corries special is the sense of remoteness and scale. The ridge is less frequented than its famous neighbours, offering an uninterrupted connection with the wild landscape. The quartzite underfoot sparkles in sunlight, creating a luminous contrast to the surrounding greenery. This guide will take you through everything you need to know to tackle the Grey Corries walk: the Munros, the route, the challenges and how to prepare for this unforgettable adventure.

Route Overview

Distance: 25-26km Total Ascent: Approximately 1800m Estimated Time: 8-10 hours Start/Finish Point: Corriechoille, near Roy Bridge Terrain: Rough, rocky ridges, with some grassy and tussocky slopes on approach and descent

While the Grey Corries ridge is less technical than the nearby Mamores ridge or Aonach Mor and Aonach Beag, it requires stamina and good navigation skills. The ridge is characterised by steep ascents, narrow paths and rough terrain, but the rewards are immense: sweeping views across Glen Nevis and Glen Spean, and a sense of accomplishment as you conquer these majestic summits.

Getting to the Start

The primary starting point for the Grey Corries route is at Corriechoille, located near Roy Bridge. This small hamlet is easily accessible from the A86, which connects Spean Bridge and Newtonmore. From Spean Bridge, follow the minor road past the railway station and continue for 3km until you reach a track junction at grid reference NN252793. Limited parking is available here, so arriving early is recommended.

For those relying on public transport, Roy Bridge has a station on the West Highland Line with regular services from Glasgow and Fort William. From the station, it’s a short taxi ride or a 3km walk to Corriechoille. Unfortunately, there is no direct bus service to the starting point, but buses to Spean Bridge are available, where you can arrange onward transport.

The Walk Step by Step

Stage 1: Corriechoille to Sgurr Choinnich Mor

The walk begins on a forestry track, gradually climbing through Leanachan Forest. After approximately 2km, the track emerges onto the open hillside, offering your first glimpse of the Grey Corries ahead. Follow the path to the Lairig Leacach bothy, a charming shelter nestled in the valley. From here, the ascent to Sgurr Choinnich Mor begins in earnest, climbing steep slopes to reach the first Munro at 1105m. The views here set the tone for the day, with Ben Nevis towering to the west.

Stage 2: Sgurr Choinnich Mor to Stob Coire an Laoigh

The ridge undulates eastward from Sgurr Choinnich Mor, passing over smaller summits such as Stob Coire Cath na Sine (1082m) and Caisteal (1106m). The terrain is rocky but straightforward, with grassy sections providing some respite. Reaching Stob Coire an Laoigh (1116m), the second Munro, you’ll find a cairned shelter on the summit. Take a moment to savour the breathtaking views across the glens, with Ben Nevis to the west standing prominently on the horizon.

Stage 3: Stob Coire an Laoigh to Stob Choire Claurigh

The ascent to Stob Choire Claurigh (1177m) is steep and strenuous, requiring careful footing over loose rocks. This is the highest peak in the Grey Corries and the central point of the ridge. The summit provides a commanding 360-degree panorama, with the Mamores ridge visible to the south and the Aonachs to the west. The quartzite scree here is particularly striking, glistening in the sunlight and adding to the ethereal beauty of the range.

Stage 4: Stob Choire Claurigh to Stob Ban

From Stob Choire Claurigh, the ridge narrows briefly before descending to the bealach below Stob Ban. The final climb is short but demanding, with loose scree making progress tricky. At 977m, Stob Ban is distinctive for its bright white quartzite summit, a fitting finale to the traverse. The descent from Stob Ban leads you back to the forest tracks and onwards to Corriechoille, completing the loop.

What You Will Need

• Clothing: Waterproof jacket and trousers, layered clothing for variable weather, sturdy walking boots with good grip.
• Equipment: Map (OS Explorer 392 or Landranger 41), compass, GPS device or app, headtorch, and spare batteries.
• Supplies: Plenty of food and water, as there are no facilities on the route.
• Fitness: A good level of fitness is essential, as the walk involves significant ascent and rugged terrain.
• Timing: The best time to tackle the Grey Corries is between May and September, when daylight hours are long and weather conditions are typically more favourable.

Safety and Hazards

The Grey Corries ridge is a remote and demanding route that requires careful preparation. Weather in the Highlands can change rapidly, so walkers must be prepared for wind, rain and poor visibility. Navigation can be tricky, particularly in mist, so ensure you have a map, compass and the skills to use them. Scree slopes, particularly on Stob Ban, can be unstable, so take care on descents. Always leave your route plan with someone and check the Mountain Weather Information Service before setting out.

Key Takeaways

• The Grey Corries ridge is a stunning 25-26km traverse of four Munros east of Ben Nevis.
• Expect approximately 1800m of ascent and a challenging day of hillwalking.
• Start and finish at Corriechoille, near Roy Bridge, with limited parking available.
• The ridge offers magnificent views of Ben Nevis, the Mamores and beyond.
• Good fitness and navigation skills are essential for this demanding route.

Where to Stay Nearby

If you’re planning to stay in the area, Roy Bridge offers a range of accommodation options:

• Grey Corries Lodge: A cosy hostel with dormitory and private rooms, located in Roy Bridge village.
• Roy Bridge Hotel: A traditional Highland hotel with comfortable rooms and a welcoming pub serving hearty meals.
• Spean Lodge: A charming B&B in nearby Spean Bridge, offering a touch of luxury and excellent hospitality.

Frequently Asked Questions

Q: How many Munros are in the Grey Corries?
The Grey Corries ridge includes four Munros: Sgurr Choinnich Mor, Stob Coire an Laoigh, Stob Choire Claurigh and Stob Ban. Each offers its unique character and stunning views, making the traverse a rewarding challenge for Munro baggers.

Q: How long does the Grey Corries ridge take?
The traverse typically takes between 8 and 10 hours, depending on your fitness level and conditions underfoot. It’s a long and strenuous day, so start early to ensure you have enough daylight to complete the route safely.

Q: Where do you start the Grey Corries?
The most common starting point is at Corriechoille, near Roy Bridge. This provides a convenient loop route, with parking available at a track junction. Alternative routes, such as starting from Glen Nevis, are possible but less popular.

Q: Is the Grey Corries harder than the Mamores?
The Grey Corries are comparable in difficulty to the Mamores ridge, though slightly less technical. Both require stamina, navigation skills and a head for heights. The Mamores ridge offers more scrambling, while the Grey Corries are characterised by quartzite ridges and sweeping views.