STEVE HORRELL / SCIENCE PHOTO LIBRARY STEVE HORRELL / SCIENCE PHOTO LIBRARY
Sandstone erosion. Sandstone slope eroded by water, showing channels that have been worn away. Erosion like this is common in arid, sandstone areas. During most of the year there is little rain so there are few plants. When the rain does come it tends to be brief and heavy. The lack of plants means that there are no roots to bind the soil together and prevent erosion. Sandstone is a soft rock created by the compaction of layers of sediment at the bottom of a sea or lake. Photographed in the Algarve, Portugal.
Model release not required. Property release not required.