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 7s 39c a kill in item drops (prices from 10 Oct 2026). Gold farming spots, level 50-60

Best zones:

The 15 zones with the best source; every source is listed below.

Zone	Sources	Best source	Level	Drop% ▼
Ashenvale	1	Emeraldon Tree Warder	60+	5.5%
Western Plaguelands	32	Scarlet Executioner	60+	4.2%
Unknown zone	48	Seasoned Reaver	59+	3.7%
Eastern Plaguelands	51	Blighthound	58-59+	2.9%
Silithus	43	Hive'Zora Tunneler	58-59+	1.8%
Burning Steppes	17	Malfunctioning Reaver	56	1.7%
Hillsbrad Foothills	3	Writhing Mage	58-59+	1.5%
Blasted Lands	10	Manahound	60+	1.5%
The Hinterlands	1	Verdantine Tree Warder	60+	1.4%
Felwood	8	Lord Banehollow	59+	1.4%
Dire Maul	38	Eldreth Phantasm	58-59+	1.3%
Blackrock Spire	41	Blackhand Thug	60+	1.1%
Zul'Gurub	19	Zulian Cub	60	1.1%
Blackrock Depths	8	Shill Dinger	56+	1.1%
Winterspring	47	Hederine Manastalker	59-60+	1.0%

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All sources, by drop chance:

Classic data: from the patch 1.12 world data, not yet confirmed in Forever.

Source	Level	Zone	Spawns	Side	How	Drop% ▼	Map
Emeraldon Tree Warder(elite)	60+	Ashenvale	21		Drop	5.5%	map
Scarlet Executioner(rare)	60+	Western Plaguelands	1		Drop	4.2%	map
Seasoned Reaver(elite)	59+		0	Alliance only	Drop	3.7%	map
Frostwolf Reaver(elite)	59+		0	Alliance only	Drop	3.0%	map
Blighthound(elite)	58-59+	Eastern Plaguelands	2	Alliance only	Drop	2.9%	map
Flamewaker Healer(elite)	60+		0		Drop	2.8%	map
Gordok Bushwacker(elite)	58-59+		0		Drop	1.9%	map
Horgus the Ravager(elite)	60+		0		Drop	1.8%	map
Hive'Zora Tunneler(elite)	58-59+	Silithus	9		Drop	1.8%	map
Malfunctioning Reaver(rare)	56	Burning Steppes	1		Drop	1.7%	map
Writhing Mage(elite)	58-59+	Hillsbrad Foothills	7		Drop	1.5%	map
Manahound(elite)	60+	Blasted Lands	16		Drop	1.5%	map
Verdantine Tree Warder(elite)	60+	The Hinterlands	44		Drop	1.4%	map
Lord Banehollow(elite)	59+	Felwood	1		Drop	1.4%	map
Lapress(rare)	60+	Silithus	1		Drop	1.4%	map
High General Abbendis(rare)	59+	Eastern Plaguelands	1		Drop	1.4%	map
Zora(rare)	59+	Silithus	1		Drop	1.3%	map
Ragged Ghoul(elite)	58+		0		Drop	1.3%	map
Eldreth Phantasm(elite)	58-59+	Dire Maul	12		Drop	1.3%	map
Blackhand Dragon Handler(elite)	59-60+		0		Drop	1.2%	map
Grark Lorkrub(elite)	56+	Burning Steppes	1	Alliance only	Drop	1.1%	map
Winterax Hunter(elite)	59+		0		Drop	1.1%	map
Arcane Torrent(elite)	59-60+	Dire Maul	5		Drop	1.1%	map
Blackhand Thug(elite)	60+	Blackrock Spire	2		Drop	1.1%	map
Aspect of Corruption(elite)	60+		0		Drop	1.1%	map
Zulian Cub	60	Zul'Gurub	12		Drop	1.1%	map
Eldreth Sorcerer(elite)	58-59+	Dire Maul	18		Drop	1.1%	map
Shill Dinger(elite)	56+	Blackrock Depths	1		Drop	1.1%	map
Hederine Manastalker(elite)	59-60+	Winterspring	21		Drop	1.0%	map
Blackhand Dreadweaver(elite)	59-60+	Blackrock Spire	19		Drop	1.0%	map
Zulian Crocolisk(elite)	60+	Zul'Gurub	41		Drop	1.0%	map
Brumeran(elite)	58+	Winterspring	1		Drop	1.0%	map
Son of Hakkar(elite)	60+	Zul'Gurub	20		Drop	0.9%	map
Razzashi Skitterer(elite)	56-58+	Zul'Gurub	8		Drop	0.9%	map
Red Scalebane(elite)	59-60+	Wetlands	8		Drop	0.9%	map
Aspect of Malice(elite)	60+		0		Drop	0.9%	map
Blackhand Veteran(elite)	59-60+	Blackrock Spire	35		Drop	0.9%	map
Blackwing Technician(elite)	60+	Blackwing Lair	72		Drop	0.9%	map
Zulian Panther(elite)	60+	Zul'Gurub	53		Drop	0.9%	map
Chromatic Elite Guard(elite)	59-60+	Blackrock Spire	2		Drop	0.9%	map
Rookery Hatcher(elite)	58-59+		0		Drop	0.9%	map
Red Wyrmkin(elite)	58-59+	Wetlands	3		Drop	0.9%	map
Azurous(rare)	59+	Winterspring	1		Drop	0.9%	map
Rockwing Gargoyle(elite)	57-58+	Stratholme	7		Drop	0.8%	map
Lady Sevine(elite)	59+	Blasted Lands	1		Drop	0.8%	map
Blackhand Summoner(elite)	59-60+	Blackrock Spire	15		Drop	0.8%	map
Hive'Regal Spitfire(elite)	59-60+	Silithus	38		Drop	0.8%	map
Rex Ashil(rare)	57+	Silithus	1		Drop	0.8%	map
Crimson Hammersmith(elite)	60+		0		Drop	0.8%	map
Spirestone Warlord(elite)	57-58+	Blackrock Spire	9		Drop	0.8%	map
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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.