2. Preview
These four sites will be discussed first for the reasons given:-
1. Ardalanish (ML33) Â Â Â Used to explain further the effect of the sun's movement and the range arising.
2. Ardnacross (ML12) Â Â An important site as it gives a double alignment for the winter solstice by 'halving the difference'.
3. Gruline (ML16) Â Â Â Also has two alignments from the same observing position. One for the summer solstice, again by 'halving the difference'. The other for the Epochs before/after the solstice.
4. Tenga (ML13) Â Â Four stones on a moor. Â They give three solar alignments and one lunar alignment.
( It is considered that the nature of the alignments found at Ardnacross, Gruline and Tenga provide strong evidence that these alignments were planned and were intentionally set up. Â See later under Discussion)
      Map showing all of the standing stone sites on Mull.  The above four sites are indicated.
