👉 The term "overcrust" is a technical term in the field of civil engineering and geodesy used to describe the layer of soil below the bedrock, which is usually at least 30 feet (9 meters) deep. This layer is often referred to as the "topsoil," and it serves as the foundation for the soil above it. Overcrust is important because it provides stability and support to the earth's surface, allowing for proper drainage and water retention. It
