Which economic activity could be practiced in the south-eastern part of mapped area?

Without knowing the specific mapped area, it's impossible to give a definitive answer. However, in general, animal rearing could be a possible economic activity in the southeastern part of many areas. This is because animal rearing, such as raising cattle or sheep, can be done in areas with grasslands and ample water sources, which are often found in the southeastern regions of many countries. Additionally, animal rearing can provide a source of food and income for local communities, making it a viable economic activity. However, other economic activities such as lumbering, trading, or mining may also be practiced in certain southeastern areas depending on the natural resources and infrastructure available in the region.