[5] In 1908, the Jilalin Administrative Bureau (Chinese: 吉拉林设治局; pinyin: Jílālín Shèzhì Jú) was established to govern the area.

[5] In 1920, the area was re-organized as the Qiqan Administrative Bureau (Chinese: 奇乾设治局; pinyin: Qíqián Shèzhì Jú), but the area was re-organized again in 1921 as Qiqan County (Chinese: 奇乾县; pinyin: Qíqián Xiàn).

[5] In 1933, the area was re-organized as Ergun Right Banner (Chinese: 额尔古纳右旗; pinyin: É'ěrgǔnà Yòu Qí).

[5] In 2011, Shiwei Russian Ethnic Township (Chinese: 室韦俄罗斯族民族乡; pinyin: Shìwéi Èluósī Zú Mínzú Xiāng) was abolished and Enhe Russian Ethnic Township and Mengwu Shiwei Sum were established.

[3][6] It occupies 28,958 square kilometres (11,181 sq mi), bounded to the north and west by the Argun River, which forms China's border with Russia's Zabaykalsky Krai (formerly, Chita Oblast).

[5] In Ergun's towns and villages along the Argun River are thousands of descendants of intermarriages between Han Chinese men and Russian women.

[4]: 20–5  Rural households in Ergun average ¥28,470 in disposable income as of 2019,[4]: 20–37  a 10.0% increase from 2018,[4]: 20–37  which ranked the 3rd highest of the 90 county-level divisions in Inner Mongolia which reported this statistic.

[4]: 20–37 Mineral deposits in Ergun include coal, gold, lead, zinc, iron, tungsten, copper, and fluorite.

[18] The Ergun Wetland Scenic Area (Chinese: 额尔古纳湿地景区) is designated as a AAAA Tourist Attraction.

[19] Much of the town's tourism is derived from its small rural character, as well as its unique intersection of Russian and Chinese culture.

[19] Due to the cold climate of the region, most of the ethnic township's tourism takes place in summer months.

[19] Ergun also hosts the ancient ruins of the city of Heishantou and portions of the Great Wall of Jin [zh].