Guild Wars 2

I am traveling solo in ‘Iron Marches’ leveling my character, when I see on the map (4) commanders all coming together. I travel to the location and behold a big dragon appears soon thereafter.

How in the world does people know when a big dragon appears in a particular map location? Are these discussed in Guilds at the time?

just curious to those who travel solo.

Thanks

http://guildwarstemple.com/dragontimer most of the big the events on all the servers.