Technique
Scrambling Grade
Definition
Scrambling grades classify mountain routes that fall between walking and rock climbing. The British system uses three grades: Grade 1 (basic hands-on movement, easy escape routes), Grade 2 (more sustained, more exposed, sometimes wet or loose rock), and Grade 3 (sustained scrambling approaching easy rock climbing; a rope may be advisable). Grade 4 exists informally for routes at the rock-climbing boundary.
Etymology & origin
The British scrambling grading system was developed by Steve Ashton in his 1980s guidebooks, adapting the climbing grade system (which uses Moderate / Difficult / Very Difficult / etc.) to apply to routes that don't quite require rock-climbing kit. The system is now standard across British scrambling guidebooks including the SMC's Scottish editions.
Context & usage
Grade 1 scrambles include the standard route up Stac Pollaidh, the Carn Mor Dearg arête (CMD arête) approach to Ben Nevis, Curved Ridge on Buachaille Etive Mor, and the standard route up the Devil's Staircase (the named scrambling line, not the WHW path). These routes have hands-on sections but the climbing is short, the rock is usually solid, and escape routes are obvious.
Grade 2 scrambles include the Aonach Eagach ridge in Glen Coe, the Forcan Ridge on The Saddle, the Five Sisters of Kintail traverse, and the An Teallach pinnacles. These routes are sustained, exposed, and demand genuine comfort on steep ground. Most parties carry a rope for occasional protection on Grade 2 routes — particularly the Aonach Eagach, where there is no safe descent from the middle of the route.
Grade 3 scrambles include the Cuillin Ridge traverse (the British scrambling classic), Curved Ridge of Tower Ridge, and many specific Skye routes. At Grade 3 the line between scrambling and easy rock climbing becomes academic; most parties rope up on the harder sections and the kit list extends to harness, slings and basic protection.
Scottish winter conditions reclassify scrambling routes upward — a Grade 1 summer scramble may become a Grade 3+ winter climb with snow and ice. Almost no Grade 2 or Grade 3 scrambles are realistic walking days in winter; they become winter mountaineering routes requiring full climbing kit.
Related terms
Sgurr
Sgurr is a Gaelic term for a sharp pointed mountain summit — usually narrower, more rugged and more dramatic than the rounded summits described as 'meall' or 'cnoc'. Pronounced approximately 'SKOOR' (one syllable). The accented form 'Sgùrr' indicates a long vowel sound but the meaning is identical.
Winter Munro
A Winter Munro is a Munro climbed in winter conditions — snow on the ground, ice on rocks, and the technical demand for ice axe, crampons and avalanche awareness. Scottish winter conditions typically run November to April, with the peak season December-March. Winter ascents account for the highest-risk Scottish walking outings.
Where to next
Reviewed 2026-05-28