Tessar is a massive Continent, comparable to Eurasia on Earth. Much of this continent is, however, either too hostile, infertile or scarcely populated to be of economic use.
The Northern Coasts are often ice-locked, resembling the Barents Sea on Earth, and the majority of the North is Steppe and Tundra.
The Heartlands of Tessar consist of unbroken Savannah, wild and untameable by mortal men. Some sorcerous inroads have been made, and there is free reign give to any who would like to attempt their lives there.
It is on the three fertile coasts - Western, Southern and Eastern - that humanity and the other races have thrived. Here there is plenty of space and resources for all, and also the clement weathers and forgiving terrain welcomes mortal habitation.