"It is found only in the northern hemisphere. The narrowness of the southern continents in the high latitudes is the main reason it is not found in the southern hemisphere. The strong oceanic influence there reduces the severity of the winter. Precipitation is quite well distributed throughout the year, with a summer maxima. In winter the precipitation is in the form of snow, as mean temperatures are well below freezing all the time. The predominant vegetation is evergreen coniferous forest."  Which of the following regions is described in the above passage?