Shadowmoon Valley is also a great place to farm. (maybe with good gear it's worth clearing them) These are much bigger than the Nagrand caves, and the mobs are a lot higher level. But, you should only go inside if you have stealth or if there is a lot of other people farming in the zone.

Just like in Nagrand, I marked the caves with red circles on the map. Netherstorm is also an excellent place to farm Adamantite Ore. The mobs in the caves are easy to kill and the caves are not that big, so it's usually worth going inside. Nagrand is one of the best places to farm Adamantite Ore because of all the caves (marked with red circles). Note for Retail WoW players: Don't forget to learn Outland Mining from Hanlir or Fono at Shattrath City! You can mine this ore without having Outland Mining, but you will get MUCH fewer ores! Nagrand Khorium Veins are a rare spawn of Adamantite Deposits, much like Truesilver is a rare spawn of Mithril, so sometimes you will find a few Khorium too.

There were no major changes to ores at Outland, so this guide can be used for Burning Crusade Classic (TBC) and Retail WoW.

This Adamantite Ore farming guide will show you the routes that I use for farming Adamantite Ore.

Best spot to farm golden lotus