• This race is designed to be the ultimate mountain running challenge in the spirit of Skyrunning, tackling technical terrain and ridges.  

• The runners will ascend gradually via wide forestry tracks before joining the main Allt a ‘Mhuilinn track leading to the CIC Hut. They traverse under the Ben to join the main tourist track, climbing up to the Ben Nevis summit.  

• After reaching the peak of the UK’s highest mountain, Ben Nevis, the route takes you across the impressive ridgeline of Càrn Mòr Dearg (CMD) Arete. This section is classified as a grade 1 scramble.  

• The route continues along the airy ridge, weaving through boulders as it ascends to the summit of Càrn Mòr Dearg before dropping east down another technical ridge to the 830m Bealach.  

• A steep and technical climb now leads up onto the Aonach Mor plateau where the route leaves the Ben Nevis Skyline race route.  

• Before the route can join the Grey Corries, it first passes over Aonach Beag and descends the steep fissure known as Charlie’s Gully, under the guidance of our mountain safety teams.  

• The Grey Corries get their name from their bare quartzite rock summits, this section is rough running over narrow, blocky ridgelines with short sections of easy, hands on scrambling.  

• From the last summit on the ridge, Stob Ban a long technical trail leads down to the Lairig Leacach and Loch Treig.  

• Ancient stalkers paths now weave between lower hills and open moorland as the route links back towards Loch Eilde Mor and down to the Aid station at Kinlochleven.

• A steep climb up a good stalkers path leads up to the first summit on the Mamores ridge, Sgor Eilde Beag. From here a mix of technical rocky ground and grassy trails lead across the mountain summits all the way to the western end of the ridge at Mullach nan coirean. 

• A fast runnable ridge then leads the way down into the forest in Glen Nevis before joining forestry tracks leading the Ben Nevis visitor centre and the Aid station. 

• The route now joins the Ben Nevis tourist path, rapidly climbing again to Lochan Meall an t-Suidhe (otherwise known as the ‘Half Way Lochan’), before traversing under the towering north face cliffs of the Ben to the CIC hut.  

• Descending via the main Allt, a ‘Mhuilinn track takes runners towards Leanachan Forest and excellent tracks to an amazing finish at the Nevis Range  

• The entire route is mandatory and will be comprehensively waymarked during the race. At all times, runners must follow the established path and marked route without deviations, such as cutting corners in zig-zags paths, or taking a direct line between two points. Failure to observe these rules during the race will result in disqualification. If you are recce’ing the race route in advance of the race, we kindly request that you always stick strictly to the established path on the ground.

• Participants have no special right of way over other recreational users and are reminded to be polite and courteous at all times.  

The route is approximately 106km with 6,350m of ascent.

The Skyline Scotland 100K is inspired by the Charlie Ramsay Round and Tranter’s Round. We want to acknowledge and pay homage to these two extraordinary and iconic mountain running challenges. The Ramsay Round and Tranter’s Round differ from our 100K in both style and route. Philip Tranter established the initial Grey Corries and Mamores link-up in 1964, which at the time was the 24-hour Munro record. The Ramsay Round is an extension of this route, and is one of the most important ‘Rounds' in British mountain running. Charlie Ramsay’s 1978 achievement in establishing this route was a visionary act and highly significant as a black pioneer, helping to define the spirit of Scottish endurance running thereafter. 

The course is fully waymarked, with marshals and mountain safety teams in key locations. However, due to the remote and challenging nature of the race route it is important to have a plan for if you lose the route.

At all times, participants should have a secondary navigation system. A secondary navigation system can be any of the following; map and compass, fully charged mobile phone with mapping software, gps watch or handheld gps unit.

If you lose sight of the route marking, are unable to easily retrace your steps to the last marking and are unsure of your position; do not continue as you may be going the wrong way. Sit down, get warm with your spare layers and survival bag and contact event control by phone, or by pressing the sos button on your tracker. 

This is a very challenging and technical mountain race, covering exposed terrain. Once committed to the Grey Corries and Mamores Ridge sections of the route, it is inescapable in remote and serious mountain terrain. Experience with grade 1 scrambles and confidence running in the mountains is essential. It is not suitable for novice participants.

The course will be fully way-marked so whilst navigation experience is desirable, it’s not essential for this event.