Below is an example of how a mining designation starting at surface level is reachable only if it touches the surface. The top designation is reachable as denoted by the yellow color. The bottom starts one level below the surface and is not reachable, denoted by the orange color with red borders.
Below is an example of how a mining designation starting at surface level is reachable only if it touches the surface. The top designation is reachable as denoted by the yellow color. The bottom starts one level below the surface and is not reachable, denoted by the orange color with red borders.