Where to Farm Smooth Pebble

The best place to farm Smooth Pebble is Darkshore, where Cracked Golem (level 18-19) drops it at 31.0%. That is the vanilla 1.12 chance, not yet confirmed in Forever. 18 sources are ranked below by drop chance.

Best zones:

Zone	Sources	Best source	Level	Drop% ▼
Darkshore	2	Cracked Golem	18-19	31.0%
Unknown zone	1	Goggeroc	20+	6.0%
Gnomeregan	12	Holdout Technician	29-30+	0.6%
Dun Morogh	3	Holdout Warrior	29-30+	0.2%

All sources, by drop chance:

Vanilla reference — from the 1.12 world data, not yet confirmed in Forever.

Source	Level	Zone	Spawns	Side	How	Drop% ▼	Map
Cracked Golem	18-19	Darkshore	8		Drop	31.0%	map
Stone Behemoth	19-20	Darkshore	6		Drop	30.5%	map
Goggeroc(elite)	20+		0		Drop	6.0%	map
Holdout Technician(elite)	29-30+	Gnomeregan	3	Horde only	Drop	0.6%	map
Holdout Medic(elite)	29-30+	Gnomeregan	4	Horde only	Drop	0.6%	map
Holdout Warrior(elite)	29-30+	Dun Morogh	8	Horde only	Drop	0.2%	map
Irradiated Pillager(elite)	25-26+	Gnomeregan	46		Drop	0.1%	map
Caverndeep Reaver(elite)	27-28+	Gnomeregan	16		Drop	0.1%	map
Caverndeep Burrower(elite)	25-27+	Gnomeregan	22		Drop	0.0%	map
Mechanized Sentry(elite)	28-29+	Gnomeregan	29		Drop	0.0%	map
Mechanized Guardian(elite)	31-32+	Gnomeregan	16		Drop	0.0%	map
Addled Leper	24-25	Dun Morogh	14		Drop	0.0%	map
Leprous Defender(elite)	28-29+	Gnomeregan	9		Drop	0.0%	map
Irradiated Slime(elite)	27-28+	Gnomeregan	8		Drop	0.0%	map
Irradiated Horror(elite)	28-29+	Gnomeregan	6		Drop	0.0%	map
Caverndeep Ambusher	25-27	Gnomeregan	5		Drop	0.0%	map
Corrosive Lurker(elite)	28-29+	Gnomeregan	5		Drop	0.0%	map
Caverndeep Pillager(elite)	24-25+	Dun Morogh	3		Drop	0.0%	map

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 (vanilla reference — from the 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.