Rezhn in far northwestern linear Russia, stretching roughly from the linear Bol'Shezemel'Skaya Tundra in the south to the Artctic Ocean in the north. Pretty much the area in we call the western part of Arctic Russia.  This is the name use by one of the gwomes, but not all.  So its use here on the site as the name of the whole region may need to be revised. Part of what we call Arctic Russia (and the relevant parts of that ocean)