 It was located between 4° to 8° S. latitude and 15° to 20° E. longitude.Its boundaries were to the north the river Kassai, to the east the range of hills between the Rivers Loange and D'Juma; to the south Portuguese territory; to the west the River Inkisi and the railway to Leopoldville.The sisters of Notre Dame de Namur had educational institutions for girls at Kisantu and Lemfu.