Taiga is the largest Continental Biome. It experiences long, cold winter; short, mild summers; and low precipitation. It is characterized by Coniferous forests. It covers most of the Southern Hemisphere.
You see how much the scale is, let's say that it is 150 mm=300 miles. If it goes over, you can measure it with a ruler, or move with your hands, measuring it as well as possible and estimating. Hope this helps! :)