Finding a Zone Flag is the proof that you have explored a certain zone thoroughly. After collecting 10 different zone flags, hand them over to an immortal in exchange for 3 bronze tokens and a certificate with the proof that you have found all 10 flags.
*
Now and then a new batch of zone flags is announced. Meaning that new zone flags have been added in new zones or already existing zones.
With the release of a new batch a competition is held: the first Clan to report a zone flag will get it reset in their HQ permanently as a trophy.
When all zoneflags of that particular batch are reported, the Clan that has found the most flags of the new batch, will win the Contest. This contest also includes the Loners. If a Loner can claim a new zone flag, the flag will be reset in the Hidden Shelter