Appendix 1 – Layering and motifs on Piedra 6

Piedra 6, in full sun a month after the solstice. Some of images on the panel can be grouped as repetitions of the same icon, or drawings of a similar patina (essentially only two gradations of patina, grey and white, can be discerned on this panel). The results are shown below.
A collection of drawings that may relate to fertility and growth, including the spiral, a quartered circle, and possible plants and seeds. These are all “grey” images, with a more aged patina.
There are four “hands”, which could also be plants, again with a grey aged patina.
Low down on the right of the panel, crossed by a shadow from the overhanging rock above for a month or two either side of the solstice, this oval with a line of dots could be used as a calendar marker for the solstice or the heliacal rising, the first re-appearance of the Pleiades, in early June.
With a whiter, brighter patina, thirteen tumis were added, and with one exception they appear to have been carefully placed in the gaps between pre-existing drawings. The exception is one that appears to have been added to a plant motif so as to enhance it, overdrawing the stem and adding two new “branches”.
A line of foxes, brighter white, crosses the panel from right to left. Some have been drawn on top of earlier images. Not all have the curled fox tails, and might appear to be llamas, but the fact that they are all facing in the same direction suggests they are a group.
Many other markings appear in a brighter white, some overdrawing earlier work.
The combination of all the above gives the resulting appearance of the rock panel today.