The cross-sectional earth cliff is a physical feature that clearly reveals the vertical layers of soil and sediment. It acts as a "geological notebook," showing the sequence of alluvial deposits from the Quaternary period. This cliff was formed when water eroded away the frontal soil layers, leaving a sheer vertical face perpendicular to the ground. This exposure displays horizontal layers of gravel, sand, and clay with varying colors and grain sizes, reflecting climatic changes and water flow patterns from over 10,000 to 30,000 years ago.