Plexus is a network or web - very apt in my opinion. A beautiful portrait of a group in situ. I stopped to eat my lunch. I often find pictures when I stop to breathe, or eat! Water has worked its way through gaps and fissures enlarging and broadening spaces between individual stones. These rocks are very large and heavy, weighting many tonnes. I love the textures, the blacks, and the roughness in this view. The rocks are covered in lichen and algae. Primative plants are producers of oxygen, and very important producer species.