Kambria was a Third Era march in central High Rock located in the Iliac Bay region. It shared borders with Koegria to the northeast, Bhoriane to the southeast, Dwynnen to the southwest, and the Wrothgarian Mountains to the northwest. The provincial seat was the city of Kambria. The province rose from lowlands in the south to a windswept plateau in the north, where towns were situated in valleys for shelter. The tops of the hills in the area were once covered with forts, but these were demolished by Tiber Septim in order to reduce potential points of resistance. The regional deity was Zenithar, and the dominant vampire bloodline in the region was Vraseth.
The ruler of Kambria was allied with the Baron of Dwynnen during the war against the Camoran Usurper and helped turn the tide of the war against the Usurper. The city of Kambria is known to possess several libraries, and has been described as picturesque.