Cant get to main quest?
That’s fireheart rise. Go plains of ashford north to Iron Marches and then over to fireheart.
[SFD] – Maguuma
Like Awesome said, go to Iron marches, then to Fireheart rise (there is no portal from Diessa plateau)
Alternative, you can go to snowdendrifts (norn starter area), then to frostgorge sound and from there to Fireheart rise. This is slightly shorter, but Frostgorge sound is for level 70-80 characters so could be a challenge if your below 70.
Arise, ye farmers of all nations
Arise, opressed of Tyria!
Arise, opressed of Tyria!