Route Grade Votings
100m. The shallow groove line which start 10m. right of Portcullis Ridge 1) 30m. Climb steeply to a roof at 25m. then move right to a stance. 2) Continue up the groove line above followed by easier climbing to the top.
This sounds like a route I climbed a couple of years ago thinking it was a new route - which we recorded as Black Adder Grooves. We thought its grade was the one given here - 2 good mixed pitches.