This was the sign that greeted our arrival. In addition to the usual restrictions, an entry fee of 25 cordovas was charged (about US $1.15).

All the pre-Columbian petroglyphs, from the smallest to the largest, were covered to protect them from further degradation due to rain.

A small pre-Columbian petroglyph carved into a small boulder, no more than 30 cm across, was covered by an equally small enclosure.

A close-up shot of the small boulder's face revealed detail both of the pre-Columbian petroglyph on it, but also of how much the petroglyph has eroded over the years.

A really huge boulder under a large enclosure was located part way up a hill and among other unadorned boulders. One has to wonder why this boulder was chosen from among so many others.

The face of this huge boulder, with its two sections of pre-Columbian petroglyphs evident. The right-hand face was more eroded than the left-hand face (camera point of view).

A close up shot of the left-hand face (camera point of view) of the pre-Columbian petroglyphs on the large boulder.

The best example of a pre-Columbian petroglyph was in a small field surrounded by a fence with a latched gate to keep livestock out. Humans could pass through the gate to take shots close up like this.

Here was a close-up shot taken of the best example of a pre-Columbian petroglyph on a large boulder in a fenced yard.