The map shows work areas on Mercury where the materials are extracted. The largest space of the colony is dedicated to mining, plus three living quarters, so if in case one fails, the rest will be ok. It works the same with the reactor and power source. We have also dedicated a LARGE space for preparing, separating, and smelting the material. The landing area is where the ship would ship the material away and the new crew would come in. The scale of my map for 1cm squared is length 10m x width 10m.