Please answer the following question: The Ussuri River or Wusuli River (Chinese: ; pinyin: Wusuli Jiang) runs through Khabarovsk and Primorsky Krais Russia and the southeast region of Northeast China. It rises in the Sikhote-Alin mountain range flowing north and forming part of the Sino-Russian border (which is based on the Sino-Russian Convention of Peking of 1860) until it joins the Amur River as a tributary to it at Khabarovsk (4826N 13459E). It is approximately 897 kilometers (557 mi) long. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Natural Place