This is an extremely long and tedious quest and should not be done on its own (see below). For each area, you must visit all five sites without leaving the zone (not necessarily in the order as they come up on your map though). Warning: If you leave a zone all sites you have visited in that zone are reset and your efforts wasted e.g. if you visit 3 sites in Ferndale, then leave Ferndale, when you re-enter your log will show all 5 again, not just the remaining 2. However, if you visit all 5 sites in Ferndale that part of the quest is permanently stored as completed.