True, because the greatest populated areas would not be in the mountain rages.
DescriptionInternational trade is the exchange of capital, goods, and services across international borders or territories because there is a need or want of goods or services. In most countries, such trade represents a significant share of gross domestic product. Wikipedia
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! :)