From TFCWiki - The Final Challenge MUD's Player Information Resource
|MANMADE||1||If this flag is NOT set, the area is deemed 'NATURAL.'|
|CITY||2||Cities maybe manmade or natural.|
|FOREST||4||Forest should not be combined with manmade.|
|QUEST||80||Special flag for quest areas that (a) adds NORECALL, NOTRANS, and NOQUEST room flags and (b) hides the area from the area list.|
|NOVNUM||100||Room vnums will not be sent via MSDP. Should be used for newly installed areas, and for maze areas.|
|NOSAVE||200||Objects from the area will not save in player files.|
Note: Values represent bitwise flags in hexadecimal.