Winter scenery of Halha River in China's Inner Mongolia(1/11)

A cattle is seen in an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region, Nov. 20, 2019. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

It is amazing that it never freezes, even during the coldest time of winter.

A herd of cattle drink water in an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region, Nov. 20, 2019. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows frost-covered plants by an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows frost-covered plants by an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

A herd of cattle drink water in an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region, Nov. 20, 2019. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

A herd of cattle are seen near an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region, Nov. 20, 2019. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)

Photo taken on Nov. 20, 2019 shows an unfrozen section of the Halha River in the city of Arxan of Hinggan League, north China's Inner Mongolia Autonomous Region. Despite Arxan's frigid winter cold, this geothermally-affected, 20-kilometer section of the Halha River never freezes even when the temperature drops to as low as minus 40 degrees Celsius. (Xinhua/Peng Yuan)