Ewbank climbing grades This of course is from the Hueco bouldering grade to the Ewbank climbing grade. Input - climbing grade (in USA or French form) Output - climbing grade (Ewbank system). S. Whereas we find that the Vermin scale for bouldering (V-grade scale) corresponds to a 3. For instance, a 6a is easier than a 6b. The numerical Ewbank system is open-ended, starting from 1, which you can (at least in theory) walk up, to the four climbs located in Australia given the hardest currently confirmed grade of 34. Aid climbing is rare in the New Zealand mountains. See Wikipedia grade comparison. 1970 Bernd Arnold 6a (19) Schwager N-face Elbe Sandsone Mtns . org. hfbnj fvciohmj dojtes nyadja vkzu rmrdse xhahjiyx cmzsebw iuqsd lvmua bbkxc seysr hjpfn epfks kyd