Administratively it is part of the Kujalleq municipality.

The fjord is oriented in a roughly NE/SW direction, to the southwest the Southern Sermilik Fjord opens into the Labrador Sea of the North Atlantic Ocean.

It separates two long mountainous peninsulas, the mountains on the northwestern side of the fjord rising steeply from the shore to heights of over 2,000 m (6,600 ft), and the 1,590 m high Napasorsuaq peak rising in the peninsula to the east of the fjord.

[1] The islands of Amitsok and Angmalortoq —the latter rising to a height of 1,253 m— lie at the mouth of the fjord.

[2] The Sermeq Glacier at the inland end of this fjord has been undergoing a well documented recession in recent history.