Photo 1: The petroglyph above the crack on the right side of this panel was made by scratching, or using a sharp rock to break the basalt surface. The scratched petroglyph has narrower lines than the pecked design below it.

Photo 2: These two petroglyphs were made by pecking, or repeatedly hitting the basalt with another rock. Pecked petroglyphs do not always have precise edges. The speckling of white around the edges shows where the maker missed its mark.

Photo 3: Dots, like those on this petroglyph panel, are often aligned in rows or columns. The dots are made by pecking.

Photo 4: The designs on this boulder are abstract. They do not obviously reflect real objects. Abstract petroglyphs may be interpreted differently by the people who view them. All of these abstract designs were made by pecking.

Photo 5: This petroglyph design is considered representational because it looks like a figure from life. Representational petroglyphs are normally anthropomorphic (human like) figures or four legged animals. This petroglyph was made by pecking.