Tin Ore Farming in Hillsbrad Foothills
Hillsbrad Foothills probably has the most tin of any zone that I have ever been in. You will be able to get at least 6 to 7 stacks per circuit of the zone, depending on if you bother to go into the yeti cave or crushridge ogre cave to collect the tin that is inside of there. In addition to finding tin you will also find a decent amount of silver throughout Hillsbrad. The most tin and silver can be found in the "Alterac Mountains" portion of Hillsbrad. If you were around before the whole world got shattered in Cataclysm than you know exactly which area I am talking about. If you're clueless right now I am talking about the area at the top of the map with all the snow and squiggly blue lines (picture below).
Hillsbrad Foothills Tin Ore Farming Path:
The path above is the exact path I use in the video, which is below. In the video I don't stop in the yeti cave but I do mouse over how many tin veins are in there on the mini map. I do, however, stop in the crushridge ogre mine and collect all of the tin from inside of there.
Hillsbrad Foothills Tin Ore Farming Video:
Items of Interest
Tin Ore
Coarse Stone
Silver Ore
Shadowgem
Lesser Moonstone
Moss Agate
Jade