To the west, the fjord opens into the Lincoln Sea of the Arctic Ocean.

It is named after Danish captain and explorer of the Arctic Johan Peter Koch (1870 – 1928), The fjord opens to the northwest to the east of Freuchen Land and the south and west of Nansen Land.

The Hans Tausen Ice Cap lies to the east of the inner fjord.

[3] John Murray Island lies further off to the NW.

[4] Merqujoq Island is located in the inner reaches, in a bend in the fjord.