Revetment cobble plane map

Quick answer：

A revetment cobble plane map is a type of topographic map that shows the arrangement and distribution of cobble-sized rocks used for stabilizing riverbanks or coastlines. It includes details on the size, shape, and orientation of the cobble stones, as well as their placement within the revetment structure. This map is important for understanding the design and construction of revetments for erosion control.