Where to Farm Thorium Lockbox

The best place to farm Thorium Lockbox is Eastern Plaguelands, where Plague Monstrosity (level 57-58) drops it at 0.5%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 456 sources are ranked below by drop chance.

Gold per kill: Plague Monstrosity is worth about 11s 56c a kill in item drops (at Auction House prices). Gold farming spots, level 50-60

Best zones:

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  1. Emeraldon Tree Warder 89.9, 39.2
1 source in Ashenvale, each where it spawns most often; click a pin for the source.Larger map

All sources, by drop chance:

SourceLevelZoneSpawnsSideHowDrop%Map
Hive'Ashi Sandstalker(elite)58-59+Silithus16Drop0.6%map
Gurubashi Axe Thrower(elite)60+Zul'Gurub31Drop0.6%map
Ursius(elite)56+Winterspring1Drop0.6%map
Razelikh the Defiler(elite)60+0Drop0.6%map
Dreadscorn(rare)57Blasted Lands1Drop0.6%map
Cobalt Scalebane(elite)56-57+Winterspring36Drop0.6%map
Hive'Zora Hive Sister(elite)59-60+Silithus29Drop0.5%map
Bloodaxe Warmonger(elite)57-58+Blackrock Spire12Drop0.5%map
Hive'Ashi Stinger(elite)57-58+Silithus19Drop0.5%map
Smolderthorn Witch Doctor(elite)56-57+Blackrock Spire7Drop0.5%map
Risen Protector(elite)58-60+Scholomance4Drop0.5%map
Rookery Guardian(elite)58-59+0Drop0.5%map
Hive'Regal Slavemaker(elite)59-60+Silithus42Drop0.5%map
Plague Monstrosity57-58Eastern Plaguelands10Drop0.5%map
Wildspawn Shadowstalker(elite)56+Dire Maul8Drop0.5%map
Scarlet Cavalier(elite)57-58+Western Plaguelands6Drop0.5%map
Krellack(rare)56Silithus1Drop0.5%map
Volchan(rare)60+Burning Steppes1Drop0.5%map
Crimson Inquisitor(elite)59-60+Stratholme3Drop0.5%map
Firebrand Invoker(elite)56-57+Blackrock Spire11Drop0.5%map
Dark Shade(elite)58-59+0Drop0.5%map
Voodoo Slave(elite)60+Zul'Gurub9Drop0.5%map
Arcane Aberration(elite)59-60+Dire Maul14Drop0.5%map
Fel Lash(elite)56+Dire Maul11Drop0.5%map
Risen Bonewarder(elite)58-59+Scholomance4Drop0.5%map
Rage Talon Fire Tongue(elite)60-61+Blackrock Spire7Drop0.5%map
Gordok Reaver(elite)58-59+Dire Maul13Drop0.5%map
Wailing Banshee(elite)58-59+Stratholme6Drop0.5%map
Ravaged Cadaver(elite)56-57+Stratholme34Drop0.5%map
Strashaz Myrmidon(elite)60-61+Dustwallow Marsh7Drop0.5%map
Ghoul Ravener(elite)58-59+Stratholme17Drop0.5%map
Crimson Sorcerer(elite)58-59+Stratholme2Drop0.5%map
Scholomance Adept(elite)58-59+Scholomance18Drop0.5%map
Risen Guard(elite)57-59+Scholomance12Drop0.5%map
Aspect of Banality(elite)60+0Drop0.5%map
Archmage Allistarj(elite)58+Blasted Lands1Drop0.5%map
Summoned Blackhand Dreadweaver(elite)59-60+0Drop0.5%map
Bloodseeker Bat60Zul'Gurub42Drop0.5%map
Bloodaxe Veteran(elite)58-59+Blackrock Spire16Drop0.5%map
Spire Scarab580Drop0.5%map
Shrieking Banshee(elite)57-58+Stratholme9Drop0.5%map
Skeletal Warlord(elite)56-57+Western Plaguelands6Drop0.5%map
Ghostly Citizen(elite)56-57+Stratholme12Drop0.5%map
Hive'Ashi Worker(elite)57-58+Silithus11Drop0.5%map
Crimson Priest(elite)58-59+Stratholme6Drop0.5%map
Gordok Brute(elite)57-58+Dire Maul47Drop0.5%map
Blackhand Elite(elite)60-61+Blackrock Spire17Drop0.5%map
Crimson Gallant(elite)59-60+Stratholme18Drop0.5%map
Deathspeaker Selendre(rare)56Eastern Plaguelands1Drop0.5%map
Aspect of Shadow(elite)60+0Drop0.5%map
456 found
Classic data: from the patch 1.12 world data, not yet confirmed in Forever.

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Drop% is the rate recorded in Forever once a source has been looted ten times; a greyed figure is the vanilla 1.12 chance from the world data (classic data: from the patch 1.12 world data, not yet confirmed in forever). Spawns counts the source's spawn points in the world data. "Side" names which side can kill the NPC when the other finds it friendly. The lead picks the best chance among sources that are not a rare spawn and have at least three spawn points.