The full Dolwyddelan circuit includes Moel Siabod via Llyn y Foel and the splendid steep rocky ridge of Daear Ddu, and follows the natural curving line of the ridge around to Allt Fawr through one of the lovliest areas in Wales. Crossing the Crimea Pass, the route returns via Moel Penamnen and the unfrequented but fine viewpoint of Y Ro Wen.
I can't remember if this has been posted before, but for anyone thinking of starting a walk from the Crimea Pass car park, it is cordoned off at the moment in the middle of a huge roadworks.