Mang Ri (Tu Mo Rong district) is known as the "land of fog", because the climate here is cool all year round. Mang Ri is not only known as the province's revolutionary base during the two resistance wars against the French colonialists and American imperialists, the people have a revolutionary tradition of steadfastness, courage, and wholeheartedly following the Party and Uncle Ho. The lake, which today is also known as the "capital" of medicinal herbs and the "rice granary" of the land at the foot of the majestic Ngoc Linh mountain.