Volcanoes national park Rwanda has a total of 37 habituated silverbacks. These are distributed among 12 gorilla families. Noheli has one silverback, Amahoro has 3 silverbacks, Kwisanga has 3 silverbacks, Igisha has 6 silverbacks, Agahsya has 4 silverbacks, Sabyinyo has 3 silverbacks, Umubano has 6 silverbacks, Karisimbi has 5 silverbacks, Isimbi has one silverback, Kwitonda has 2 silverbacks, Susa has 3 silverbacks and Muhoza has 1 silverback.