It lies about 7 km south west of Waterford City.

[2] The tomb is named for the townland in which it situated, Gaulstown, and sits at the foot of "Cnoc an Chaillighe" or "The Hill of the Hag".

[3] The portal tomb most likely dates from around 3500 BC, and is considered one of the finest examples of portal tombs in the region,[2] and was first recorded by George Victor Du Noyer in 1864.

The tomb has been undergone maintenance in the past, with a concrete support added inside the chamber.

There is evidence that some of the upright stones may have moved over time, as the shape of the chamber has been impacted.