Since my profession is mining, I searched for mining maps on the internet, and got this map from wowhead, it's really helpful! Ill post maps like this one as I go from area to area.
This one is a map of all the copper veins in Durotar. (Click on the picture to view it's full size)
This article gives the light in which we can observe the reality. This is very nice one and gives indepth information. Thanks for this nice article.
Leprestore