Moelwyn Mawr from Tan-y-grisiau loop — Parc Cenedlaethol Eryri | Snowdonia National Park

The tour begins at a parking lot on the outskirts of Tanygrisiau. It is a small car park with about 20 spaces. Access is possible without any problems, but leads through a one-lane, very narrow road. The path first takes us on a path past a larger waterfall onto a paved road that leads us steadily uphill to the dam wall of the Lyn Stwlan reservoir. From there it goes left at the dam wall over a few steps up a mountain path. The entire ascent was accompanied by thick fog. Maybe that's why the path was a bit difficult to find. The ground is often very wet and soggy, so waterproof footwear is advisable. With increasing altitude combined with the fog, the landscape resembled "Mordor" from the story "Lord of the Rings". Wild rock formations with pointy rocks towering upwards form the surroundings. We reach the summit of Moelwyn Mawr in the fog and can only see the summit stone. The descent is pleasant, initially steeper on rocky ground, then increasingly flatter on grassy ground with lots of mud underfoot again. We turn left and go straight down a rather steep stretch and after another left turn we reach the first ruins of the Rhosydd Quarry mine (more information: Ruins of Rhosydd quarry barracks and mills, near Tanygrisiau - History Points ). The entrance to the mine shaft is not locked and we can take a look inside (cold and spooky). We go back a few 100 meters and reach another accumulation of ruins with huge dumps. The further path through the heap is initially steep then flatter into the valley. The fog clears and we find ourselves in a sunlit green valley. The valley offers plenty of other highlights in the form of former industrial ruins, a church ruin and a mill (more information: https://historypoints.org/index.php?page=ruins-of-quarrymens-chapel-cwmorthin , https:/ /historypoints.org/index.php?page=cwmorthin-terrace-ruins-near-tanygrisiau , https://historypoints.org/index.php?page=site-of-cwmorthin-slate-mill-near-tanygrisiau ) At the end of the valley we reach the waterfall from the beginning and the parking lot.

Hike along the lower trail, which had good clear views of the coast and Snowdon. Once past the Dam section trail is an old slate miners path, which runs past a number of old ruins. Eventually meets up with trail leading up to Moelwyn Mawr peak, which is the least walked path to the top. Therefore, not so many people. Nice easy hike.