Ooze Covered Rich Thorium Vein Silithus
Ooze Covered Thorium Vein Feralas, Un'Goro Crater
Rich Thorium Vein Alterac Valley, Azshara, Un'Goro Crater, Winterspring, Burning Steppes, Eastern Plaguelands, Western Plaguelands, Dire Maul
Small Thorium Vein Alterac Valley, Felwood, Feralas, Silithus, Tanaris, Un'Goro Crater, Winterspring, Blasted Lands, Burning Steppes, Eastern Plaguelands, Searing Gorge, The Hinterlands, Western Plaguelands, Caverns of Time