There are no Spanish symbols here that I can find, however I'm not infallible in that regard.
The central spiral that is followed by a long tail seems to indicate that if you "go upstream starting to the side, you'll end up above a short distance within grasping reach" but that is a paraphrase and subject to modification upon site inspection. The short distance is indicated by the human figure just above the end of the water stream tail.
Just above that to the left a little bit appears to indicate veering to the left and there will be an easy route. Or the way to the direct left (as indicated by the symbol to it's left) is clear and "easy" as indicated by the two roughly parallel lines.
Then another way or path leading downward (the spiral just above the "easy, clear, nothing on it" sign).
The antelope figure in the lower right hand side seems to indicate that the way to the right is down and "clear" but the tail indicates that there is something behind or "not good". Could indicate a steep path that is clear but watch for falling rocks(?).
The human figure at the bottom of the rock of the first photo is unclear but seems to be standing (hungry) a distance away at the bottom (perhaps of a nearby canyon?). But he's unclear and if possible I'd like to look at a photo of him in detail.
The two arrowheads facing one another on another of the photos indicate peace.
And there's a lot more there that would take time to decipher, but for what it's worth that's a sample of what it seems to say. If you've been around the area then some of what I have written here may have some meaning or it could be that I'm way off!
Oh and the just below the uppermost symbol that seems to be smudged caught my eye as it is very interesting. I wish that your detailed second photo extended as far up as the first as there is something very intriguing going on in that area. Could be indicative of something they were interested in concealing or "holding firm".
All in all a very interesting work that seems to have been added to by another "writer" as indicated by some incisions on the upper left.