满洲, also known as Manchuria, is a historical region located in Northeast Asia, primarily in modern-day China and parts of Russia. It is bordered by the Amur River to the north and the Liao River to the south. The region has a rich cultural history, being home to the Manchu people, who established the Qing Dynasty in the 17th century. The area is known for its diverse geography, including mountains, plains, and rivers. It has been significant for trade and agriculture, contributing to the economy of China. Today, it encompasses several provinces, including Heilongjiang, Jilin, and Liaoning.