Kattertooq is located north of the . It is oriented in a NW/SE direction and has a tributary fjord branching eastwards 25 km from its mouth. To the east it opens into the
North Atlantic Ocean with
Uiivaq island on the northern and the entrance of
Sehested Fjord (Uummannap Kangertiva) and
Griffenfeld Island on the southern side of its mouth. This fjord has a large, active glacier at its head, the
Skinfaxe Glacier, which has its terminus in the fjord shortly after its confluence with the
Tjasse Glacier joining it from the west. ==History==