At the mouth of the fjord the coastline of southwestern Greenland turns to the east towards Qaqortoq.

[1] The fjord is 40 km (24.9 mi) long,[2] with an east-north-east − west-south-west orientation, opening into the Labrador Sea.

There are several oblong, uninhabited islands in the inner part of the fjord, its mouth widening into a 17 km (10.6 mi) bay at the confluence with the Labrador Sea[3] at approximately 60°53′30″N 48°19′30″W / 60.89167°N 48.32500°W / 60.89167; -48.32500.

Arsuk is the closest settlement, located just beyond the border with the Sermersooq municipality, approximately 30 km (18.6 mi) to the north of the fjord mouth.

[4] It was named 'Coppermine Bay' after a pioneer mining operation in Southwestern Greenland at the beginning of the 20th century.