Administratively it is part of the Northeast Greenland National Park zone.

This nunatak was named by the ill-fated 1906–08 Danmark Expedition after Ymir, the giant of Norse mythology.

The Suzanne Glacier flows to the south and from it flows the Britannia Glacier southwards into main Queen Louise Land.

To the west rises the Greenland Ice Sheet and to the east the Storstrommen flows southwards.

The narrower eastern section of the nunatak is known as Jaettebringen.