Mutsu Province The Meiji Mutsu Province was a region in the northernmost part of the main island that corresponds to today's Aomori Prefecture. At the same time, while the characters of the name were unchanged, the official reading was changed to the "on'yomi" version "Rikuō". Mutsu Province Mutsu Province is also known as or . The term is often used to refer to the combined area of Mutsu and the neighboring province Dewa which make up the Tōhoku region. Mutsu, on northern Honshū, was one of the last provinces to be formed as land was taken from the indigenous Emishi and became
Tuyên Quang Province its left bank. The province has a land area . The province's territory has only 7.2% of natural forest comprising both rain forest and monsoon forest. The distribution of river and stream network in the province is 0.98 km/km. There are three main rivers: Lô, Gâm and Pho Day. The Lô River originates in Van Nam, China, flows through Hà Giang to this province; it flows for a length of in the province and drains an area of . Its maximum flow is 11,700 m/s, while the minimum flow recorded is 128 m/s. It is a navigable river and is