NUNATAK  , a name applied in

Greenland (and thence extended in use elsewhere) to a hill or mountain peak appearing above the surface of a glacier . Greenland is for the most part covered by an ice-cap of a certain thickness which moves slowly down-wards to the sea . It will rise upwards and pass over a barrier if there is no outlet, but it will flow between and around mountain peaks leaving them standing as hills (nunataks) above the general surface of the ice-cap . These prominences are sometimes covered with arctic vegetation, and arctic flowers bloom freely upon them in the summer .