Cobalt Ore Deposits are most common in the Borean Tundra and Dragonblight. There are also some Deposits in other, higher level zones. In those zones, Saronite Ore takes most of the spawns, though. In order to mine Regular Cobalt Deposits, you will need a Mining Skill of 350. For the Rich Cobalt Deposits, you’ll need 375, so both of those can be mined right from the start of Wrath Classic.
Farming Cobalt Ore in Borean Tundra
As mentioned above, the best zone to farm Cobalt Ore is the Borean Tundra. Cobalt Deposits are all over this zone and there are a bunch of spawn points for Rich Cobalt Deposits. The Deposits are quite spread out, though, and the large zone does not make farming here very time-efficient.
Dragonblight Cobalt Ore Farming
While Dragonblight doesn’t have quite as many Cobalt Deposits as the Borean Tundra, there are a few Saronite spawns in the western part of the zone. This can make for a nice addition to your Mining yield and is useful when you are leveling up your mining skill.