|Foto: António Martinho Baptista / arte-coa.pt|
In the recent past, both rivers have been subjected to water levels dictated by the various dams that interfere with seasonal river flow. The team directors, who organise each year a field school devoted to rock art, have since 2011 been recording six panels. One of these is an Upper Palaeolithic engraving of a horse which was initially discovered in September 2000. Since then it has been the focus for further research.
The horse is engraved on a smooth angled-surface that forms part of a schist outcrop and appears to be headless. However, a recent tracing exercise in the summer of 2013 revealed that this figure did in fact possess a head. The style of the figure is representative of other engraved Upper Palaeolithic horses found elsewhere within the western part of the Iberian Peninsula.[...] stonepages.com (B&W3)