Kafa wani yanki na kan iyaka tsakanin China da Rasha, da kogin amur o Kogin Baƙin Duhu, ya daɗe yana da muhimmiyar rarrabuwa ta zahiri tsakanin waɗannan ƙasashen biyu. Kogin ya rufe nau'ikan manyan bambance-bambance na yanayi, daga hamada daga tudu zuwa tundra.
A cikin nassoshi da yawa na tarihi waɗannan ƙungiyoyin siyasa guda biyu ana kiran su Manterur Manchuria da Inner Manchuria, bi da bi. Kuma kogin kamar iyaka ne tsakanin lardin Heilongjiang na kasar Sin, a gefen kudu na kogin da ke dauke da sunansa, kamar yadda yankin Amur na Rasha da ke arewacin bankin. Sunan Kogin Baƙi Manchu da Daular Qing sun yi amfani da shi, waɗanda koyaushe suna ɗaukar wannan kogin a matsayin wani abu mai tsarki.
Kogin Amur alama ce mai mahimmancin gaske na - kuma muhimmin mahimmanci a cikin yanayin siyasa - alaƙar Sin da Rasha. Amur yana da mahimmanci musamman a lokacin bayan rikicin siyasa tsakanin China da Soviet Union a cikin 1960s.
Shekaru da yawa, Tungusic (Evenki, Solon, Ducher, Nanai, Ulch) da Mongol (Daur) sun mamaye Kwarin Amur. Da yawa daga cikinsu, kamun kifi a cikin Kogin Amur da raƙuman ruwa shi ne babban tushen rayuwar su. Har zuwa karni na 17, Turawan ba su san waɗannan mutane ba, kuma Sinawa ba su da masaniya sosai, waɗanda a wasu lokuta a haɗe suke bayyana su a matsayin Jurchens na daji. Kalmar Dazi Yupi ("Fatar kifin Tatar") an yi amfani da ita ga Nanais da ƙungiyoyin ƙawancen kuma, saboda tufafin gargajiya da aka yi da fatun kifi.
Karni na 17 ya ga rikici don ikon Amur tsakanin Russia, fadada gabashin Siberia, da daular Qing da ta ƙaru a kwanan nan, wanda asalinsa ya kasance a kudu maso gabashin Manchuria. Balaguron Cossack na Rasha wanda Vassili Poyarkov da Khabarov Yerofey suka jagoranta sun binciko Amur da raƙuman ruwa a cikin 1643-1644 da 1649-1651, bi da bi. 'Yan Cossack sun kafa sansanin Albazin a saman Amur, a wurin tsohuwar babban birnnin Solon.
Gaskiyar ita ce Kogin Amur shine mafi mahimman hanyar ruwa a cikin Far East Russia. Mahaɗar kogin Argun da Shilka sun kafa Kogin Amur. Na mil mil 1.000 kogin yana ba da iyakar ƙasa tsakanin Rasha zuwa arewa da Jamhuriyar Jama'ar Sin a kudu. Yankunan Kogin Amur sun hada da shimfidar wurare daban-daban na hamada, steppe, tundra, da taiga na arewa maso gabashin Asiya.
Har ila yau, Kogin Amur yana da mafi girman daraja dangane da yalwar albarkatun halittu (bayan Kogin Mississippi) a Arewacin Hemisphere. Ya ƙunshi cakuda na musamman na filaye da fauna a arewacin.
Ya kamata a san cewa Amur ya kai matsayinsa mafi girma a tsakiyar lokacin bazara a lokacin damina. Daga Mayu zuwa Nuwamba, lokacin da kogin ba shi da kankara, ana iya yin amfani da Amur tare da tsawonsa.