Glasgwm

Standing at the southern tip of the Arans, this broad, grassy Marilyn offers a quieter alternative to its loftier neighbours. The ascent reveals a plateau-top surprise in the form of Llyn y Fign, while the summit cairn provides a clear perspective across the Dyfi valley towards the rugged ridges of Cadair Idris.

• •The name is Welsh, combining 'glas' (green) and 'cwm' (valley or hollow), likely describing the verdant, bowl-shaped slopes that stand out against the more shattered, rocky terrain found further north on the Aran ridge.
• •It is often climbed as the final peak on the 'Aran Ridge' traverse, a classic high-level walk starting from Llanuwchllyn that includes the 905-metre Aran Fawddwy.
• •Just below the summit lies Llyn y Fign, a small, quiet tarn that provides a striking foreground for views towards the west, though it can be difficult to locate in mist on the wide plateau.
• •From the summit, the view to the south-west is framed by the distinctive profile of the Cadair Idris massif, while the Berwyn range dominates the eastern horizon.
• •The summit plateau is famously boggy; a hillwalker's success here is often measured by whether they return to the valley with both boots still firmly attached to their feet.