Huma County (simplified Chinese: 呼玛县; traditional Chinese: 呼瑪縣; pinyin: Hūmǎ xiàn; Manchu: Hūmar Siyan; Russian: Кумары) is a county in the far north of the Heilongjiang province, People's Republic of China.The opposite side of the Amur River is in Amurskaya Oblast', Russia, where there is a village with the same name in Russified form, Kumara (Russian: Кумара)[1] Kumarsk, the predecessor of the present-day Huma, was a fortified Russian town in the Amur River region, founded in 1652 by Yerofey Khabarov and his companions, during his retreat from Achansk, corresponding to the present-day Khabarovsk, where he was besieged by Manchu and Daur allied forces.On 13 March 1655, the Komar fortress, defended by the ataman Onufriy Stepanov and his 500 Cossacks, was besieged by a Qing army led by Ming'andali (明安達理) consisting of 10,000 men.The monthly 24-hour average temperature ranges from −24.7 °C (−12.5 °F) in January to 21.3 °C (70.3 °F) in July, and although temperatures consistently average above 10 °C (50 °F) from May to September, the annual mean, at −0.3 °C (31.5 °F), is low enough to form sporadic permafrost on sheltered sites, which is unusual for areas with this climatic classification.2 Formally part of Oroqen Banner in Inner Mongolia but administered de facto by Daxing'anling Prefecture in Heilongjiang.