Taimir River

The Taimir River (Zhenian: 대룡강/대미르강) is the longest river in Zhenia and the world's fourth-longest river, as well as one of the longest river to flow solely within a single nation. Originating from Jongseong Plateau in Zhenia's Heuksu Province, it makes its way to its delta on the Gulf of Danguk in a generally southeast direction, spanning over a length of 5482.4 km. Its, the Taimir Basin, also referred to as the 'Zhenwon' in historical contexts, is home to over 240 million residents, or just over 40% of the entire Zhenian population, with the basin spanning almost the entirety of the Central Zhenian Plains and adjoining plains in central, northern and southern Zhenia.

The Taimir River has played a prominent role in shaping Zhenian history since antiquity, being one of the first in modern-day Zhenia. It has been used for water, irrigation, sanitation, transportation and industry for thousands of years, while its basin, spanning over most of central Zhenia, has historically been one of the most fertile lands in the nation and thus home to numerous prosperous states throughout Zhenian history. While controlling the river's floods was the focus of many mainland Zhenian states in relation to the Taimir over the centuries, priorities shifted since the 15th century AC to include managing the flow of the river as well as the maintenance and expansion of shipping routes that relied on the river, resulting in the construction of gargantuan engineering works including locks, dams, levees and bypasses.

Today, the Taimir River is home to several endemic and endangered species, including the South Zhenian River Dolphin and Zhenian Crocodile, as well as the hub of numerous ecosystems that are dependent on the river's existence. As a result, some sections deemed essential to the survival of ecosystems dependent on the river have been designated as nature reserves since the late 15th century. It has also experienced significant pollution and environmental problems since the 15th century AC, including high nutrient and chemical levels from agricultural and industrial runoff, which has resulted in the Gulf of Danguk Dead Zone.

Major cities along the river

 * Ariul
 * Dongtan
 * Guju
 * Jinhae