Maen llia is directly aligned, along with other nearby markers, with three of the four lunar standstills; major north set, major south rise, minor north set. The minor south set is referenced by the same markers.
This is the major south rising moon, june 11th 2025.
Image credit: Cerrig
Delighted to see you back here cerrig, that's a beauty. Glad you're still on your Tawe valleys mission.
I'm a bit rickety now but I can still get lucky sometimes. It's gone very quiet on here.
Nice one.