Khentii is a vast, sparsely populated province in eastern Mongolia, rolling across forested mountains and open steppe toward the Russian and Chinese borders. It is best known as the birthplace of Genghis Khan — the town of Dadal, near the Onon River, is the traditional site — and that history gives the entire region an outsized significance for anyone interested in the Mongol Empire.
Outside of Dadal, the province is almost entirely untouched by tourism. The Onon-Balj National Park protects a stretch of boreal forest and wetland along the Onon River, one of the few areas in Mongolia where you can find Manchurian landscapes rather than the classic steppe. The region is excellent for fishing, and the birdlife along the river valleys is exceptional.
Getting here takes effort. Undurkhaan, the provincial capital, is reachable by road from Ulaanbaatar in roughly eight hours, and onward travel to Dadal or the national park requires a reliable 4WD and ideally a local guide. That distance is also the point — Khentii sees a fraction of the visitors that reach central and western Mongolia, and the landscape and nomadic culture feel correspondingly more intact.