Nice! thanks for this.
The pictures are from : WoW Mining Guide with Maps 1-450 - WOTLK Mining Guide | Almost Gaming
Howling fjord: Cobalt , normal and sometimes rich.
Zul'Drak Rich and Normal Cobalt:
Sholazar Basin , Saronite / Titanium ores.
They are not complete cause i found nodes that are slightly off the route but they are aroun 80% accurate. So if your farming like i do just try find a route along the lines shown , memorize it and run it a few times.
Northrend Forever - Forever Northrend
One thing I have found helpful in Sholozar if the zone is being farmed by other people is to run from the SE corner to the SW corner and then up to the NW corner, turn around and go back to SW and then to SE and then repeat. The nodes tend to spawn pretty quick and the other farmers will usually keep going in one direction while you backtrack and steal the repops.
Another thank you - i've mostly populated my map with the nodes but the routes look very efficient.