In the area we now know as the Los Cedros Reserve, evidence has been found of indigenous people inhabiting the area in prehistoric times. On the walk to the reserve, there are spiral and circular petroglyphs on a large granite boulder. Several stone corn grinders, “bateas”, and various pottery and ceramic jewellery fragments have also been found in areas where the forest shows signs of being old secondary regeneration. Evidence of terracing can also be seen. From these findings we can only speculate the type of life this forest once supported.