Turris in Mauretania is an ancient settlement of Roman North Africa in the Roman province of Mauretania Caesariensis.[1] The location is unknown but believed to be in Algeria. The city was believed to be the site of an ancient bishopric[2] but no bishops of antiquity are known to us. The suffix "in Mauretania" is to differentiate the town from cities that existed in Spain and adjoining provinces of Roman North Africa.