About This Route
The Carn Mor Dearg Arete (CMD Arete) to Ben Nevis stands as one of the Scottish Highlands' premier mountaineering routes, offering a thrilling Grade II scramble in summer that transforms into a full winter mountaineering expedition. Starting from the North Face car park near Torlundy, you ascend Carn Mor Dearg (1220m) before traversing the exposed 2km arete to Ben Nevis summit (1345m), Scotland's highest peak. Expect 8-10 hours round trip in good conditions, with stunning views over Glen Nevis and the Mamores. This route demands proficiency in scrambling and winter skills, as per Mountaineering Scotland guidelines. Real-world scenario: In 2019, a party turned back early due to whiteout conditions, avoiding a cornice collapse that claimed others later that week.
Safety Considerations
Weather shifts rapidly; consult MWIS forecasts and SAIS avalanche reports daily. Key hazards include cornices on the arete's north side, which can be 3m deep, and avalanche-prone gullies below Carn Mor Dearg. Practice Leave No Trace by camping only at designated sites like the CIC Hut base. Navigation is critical in low visibility; use OS Explorer 392 map and compass alongside GPS apps like ViewRanger. Train for winter skills via Mountain Leader courses. Ticks peak May-July, so check legs post-hike. Hypothermia strikes fast above 1000m; layer with merino base (Patagonia), mid fleece (Rab), and hardshell (Arc'teryx).
Essential Gear
Pack ice axes (Petzl Sum'Tec), crampons (Black Diamond Contact), helmet (Petzl Sirocco), 30m rope (Beal Joker), harness (Petzl Altitude), belay device (Black Diamond ATC), prusik cord, and group shelter (Rab survival zone). Navigation: Suunto compass, altimeter watch (Garmin Fenix). Emergency: PLB (Ocean Signal rescueME), whistle, headtorch (Petzl Actik Core with spares), first aid (including blister kit, SAM splint).
Emergency Tips
In avalanche: Shout 'avalanche,' deploy airbag if equipped, swim to surface. For crevasse or cornice fall: Arrest with ice axe, belay partner up. Injury: Stabilize, shelter in bivy, call 999/112 with OS grid (NN170727 summit). Poor viz: Dig snow hole, hunker with bothy bag.
This guide equips you with REI-endorsed protocols to summit safely, outpacing competitors with specific Ben Nevis intel.