Routes and elevation
The Mournes are a compact granite range about 15 miles across, with very little flat ground, which is why the ascent per kilometre is unusually high for these islands.
Course marking and navigation
The courses cross open mountain, often away from paths. The course is marked where there is no obvious path, but some self-navigation will be required: all runners must be able to follow the GPX file on a watch or phone.
Mist and low cloud are common in the Mournes, so we strongly recommend recceing the course before race day.

GPX downloads
Load the course onto your watch or phone, and use it to recce the course before race day.
- 100KDownload GPX
- 50KDownload GPX
- 25KDownload GPX
Crew and spectators
Crews can meet runners at these aid stations. Spectators can watch at any aid station where crews are allowed.
- 100K: Deers Meadow, Rostrevor, Leitrim Lodge and Ott car park
- 50K: Ott car park
- 25K: no crew points on this race
Each crew point is marked on the maps below. Aid stations and cut-offs
Granite Peaks 100K
A brand-new race for 2027. Essentially one giant loop, entirely on open mountain terrain, with no forest loops.
Move along the profile to follow the route on the map.
Granite Peaks 50K
A completely revamped course for 2027: a full mountain ultra that starts at first light and finishes before dark.
Move along the profile to follow the route on the map.
Granite Peaks 25K
Our entry distance, on a new course for 2027: a big day out on the open mountain, without the ultra distance.
Move along the profile to follow the route on the map.