From WoWWiki

This article contains lore taken from Warcraft: Orcs & Humans, its manual, and official bonus maps.

Grand Hamlet was a town in the kingdom of Stormwind before being utterly destroyed during the orc invasion known as the First War.

The exact location of the town in terms of current World of Warcraft geography is not known, though based on the fact that it fell early in the war, it may have been located in southern Elwynn, now known as Duskwood, possibly where either Raven Hill or Darkshire currently sit. Raven Hill's proximity and position in relation to the nearby rivers which now separate the regions of Duskwood, Elwynn Forest, and Westfall, match closely Grand Hamlet's relationship to similarly arranged rivers on the map in which it was featured in Warcraft: Orcs & Humans.