Primary Structure Arboretum makes oxygen and plant growth. Final testing ground before plants are exposed to Mars terrain. Source of food. Contains all manner of life save for humans. The primary structure can survive without human interference. Power Station Thorium Nuclear Power Station Quarantine Lock Monitors power and provides distance from primary structure. Vehicle Repair Unit Can assemble vehicles as needed and as materials allow Artificial Gravity A centrifuge can simulate gravity of Earth or higher. Exercise is done here and some work.. Housing, Medical, Entertainment and Food Housing for a staff of 10 - 50 people Medical doctor Entertainment lounge Food crate storage contains emergency rations for a year, suppliments and protein bricks (jerky). Galley Food preparation for storage from Primary Structure Seed Room/Compost All seeds are kept for future use Compost heap uses waste flushed, bacteria and worms Recycle Offices, Communications Reports to command Paperwork Management Maps Plans for missions Air Lock One of several exits to Mars but the main exit from the Primary Structure Chem/Bio Research on Mars' chemical availability Research converting rust into soil with bacteria Research converting rust into iron with aluminium Research plants and extremophiles that can exist on Mars' surface Additional R&D Manufacture of Base Products Facility for creation/repair of commonly used items Including computers and other microscopic devices Contains a copy of all source programs to load on replacement computers Machine Shop and Factory Smelts ore and rust into usable ingots Store of metals Machines parts for structures, vehicles and other macroscopic devices Ground Water Station/Ice Water Station Depending of location: Pumps water from wells into tanks Melts water with heaters to collect into tanks Fully automated Transport to second base Spaceport Landing pad for shipments Vehicle pickup