The site of the fort has not been comprehensively excavated but it is believed to have served as a naval supply depot for Roman forces in the central lowlands.

[1] However, its site on the southern side of the Tay estuary is incompatible with its use as a base for Severan offensive operations to the north and, along with other evidence, it is more likely that the fortress was built under Commodus in 185 to support his campaigns.

During the era of the fort's occupation, the Antonine Wall lay to the south and the vicinity was inhabited by the people referred to in Roman sources as either Caledonians or Caledones.

Modern Carpow is a rural hamlet, consisting of several residences, immediately eastward of the mouth of the river Earn.

They include the full quadrilateral outline of the fort's ramparts and the remains of a building which seems to have been a typical Roman military headquarters known as a "principia".