The document describes a diagram of retaining walls for roads at a Canyon Ranch development site. It classifies the walls into three categories based on height: walls around 0.5 meters high with no retaining function; walls from 0.5 to 3 meters high made of concrete and rock cladding; and the tallest walls from 3 to 5 meters high also made of concrete and rock cladding. The diagram provides a rough visualization of how the retaining walls of different heights will be implemented throughout the development.