Draconic Lumberjack

I farmed all 250 Dragonpine Lumber in ohn'ara around /way 77 31. You can circle around the waypoint, it respawns rather fast, if there is not enough in the area you can go to the North meanwhile which is also a great spot! This area is chill, the axes are easy to see, small trees and not too many mobs... ^-^

If you're just doing this for the achievement, do yourself a favor. Go to Bel'ameth. Turn on the music. It's probably the most peaceful, beautiful, meditative experience in the game. It's also probably the only activity currently available to do in that zone. There's no shortage of nodes. It took me an hour from start to finish. Take your druid for mounted harvesting.

Harvesting wood on a Druid does not knock you out of travel form, and the unlock and progress is account wide. Farm all your wood on a Druid and unlock mounted harvesting for all chars! :D