You can't take fields for granted in Greenland. Indeed, in much of the country there simply aren't any, but near Narsaq (in the south) there's a growing business of sheep-farming.
Mostly the sheep roam happily in the hills, grazing as they go, but there are a small number of fields where hay is grown for winter feed. Cultivated land is so rare and precious that you're not allowed to walk across it lest you do some accidental damage: to this end, the fields are clearly marked on walking maps of the area.
But it's not like you could miss them - against the harsh greys of the surrounding landscape, these are fields of the most vivid green I've ever seen. These rare oases look lush and beautiful... I can only imagine how much work it is to keep them that way!