I recently worked all my trade skills up to 300. While doing smithing I spent some time farming cobalt. I ended up farming in two places using cwtn plugins. I used plane of Fire and cleared the entire area in the south, up to the where the two Phoenix raid mobs spawn. There is a spot on the southern wall of the zone next to the wall that surrounds the area with the fire giants and tables camp where if you set your radius to 1600 -1650, it’ll will clear everything in that field, and all of tables area, but won’t go as far as the fort that splits the zone, nor try to navigate the fire tunnels where it’s a nightmare for getting stuck.Whoever said that Kaesora Library was a great place to farm Cobalt Ore was mistaken. I cleared the entire zone three times and got 0 Cobalt Ore. Just thought I would mention that.