This quest is part of the 
[Key to the Arcatraz] quest line.
The preceding quest is 
[69] An Audience with the Prince [1]
The next quest is [70] Triangulation Point Two [2].
DESCRIPTION
"...[Player Name], take the equipment and use it to find the triangulation point. We know it to be somewhere to the east near ManaForge Ultris..."
SPOILER
The coordinates are 66,34.