The Heilongjiang River finally flows into the Tatar Strait in the Sea of Okhotsk.
The Heilongjiang River originates from the border between northeastern China, northern Inner Mongolia, and Siberia, and flows generally east and southeast along this border to the Siberian city of Khabarovsk, and then turns northeast near Lobei County, where it successively receives large tributaries such as the Songhua River and the Ussuri River, and finally empties into the Tartar Strait of the Sea of Okhotsk at Nikolaevsk, Russia.
Expanded Information:
The Heilongjiang River is divided into three sections: the upper, middle and lower reaches. The upper reaches begin at the confluence of the Shilka and Ergun rivers and end at the mouth of the Gyeya River (in the Siberian city of Hailanbao) and are about 880 kilometers (550 miles) long. The middle reaches extend from the Goya River to Khabarovsk, about 960 kilometers (600 miles) long. The lower reaches, from Khabarovsk to the mouth of the river, are also about 960 kilometers long.
The upper reaches of the river flow through a valley between the pine-shaded slopes of the pine-covered slopes of the Amazar Mountains and the remnants of the Daxingan Mountains covered with dense larch forests. Near Albazino in Siberia, the mountains part and the river enters the open plateau region.
The middle reaches of the river flow into the basin of the Goya-Bureya River. The left slope of the valley blends imperceptibly into the plain, while the right slope is contiguous with the Lesser Hinggan Ridge. It then follows a narrow canyon-like passage through the Xiaoxingan Mountains, increasing in depth and speed.
The lower reaches run between low, overflowing banks into a vast swamp, where the watercourse cuts through the ground and is dotted with lakes and pools; the riverbed branches out and the watercourse becomes very wide.
Near Leninskoye in Siberia, the Songhua River, the largest tributary of the Heilongjiang River, cascades its yellow, sediment-laden flow, and near Khabarovsk, the Ussuri River joins it. At Khabarovsk, the Heilongjiang is only 370 kilometers (230 miles) from the coast of the Sea of Japan, but it flows 966 kilometers (600 miles) northward before it empties into the sea after being diverted by the Sikhote Mountains.
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