The upper section of the cliff, above the main climbing cliff, to top out to the Glyderau plateau, "in a seemingly endless run of rocky bluffs, which in places can be quite feisty (i.e. tech 4 or 5)" (expert from the introduction of the section "Glyder Fach" (p.83) in the 2010 definitive guidebook by Simon Panton and Mark Richards, published from Groud Up).
Moved together, except for the initial few metres, where I soloed and belayed, starting at the final belay of Square Chimney Buttress. masa-alpin - Lead O/S - 19/Jan/13 with Luke A