It is found on large landmasses , away from the moderating effects of an ocean , generally at latitudes from 50 Â to 70 Â N. Due to the absence of any large landmasses at such latitudes , it is not found in the Southern Hemisphere . It is found on large landmasses , away from the moderating effects of an ocean , generally at latitudes from 50 Â to 70 Â N poleward of the humid continental climates .