Qinghai in the context of "Tanggula Mountains"

Inner Asia refers to the northern and landlocked regions spanning North, Central, and East Asia. It includes parts of western and northeast China, as well as southern Siberia. The area overlaps with some definitions of "Central Asia", mostly the historical ones, but certain regions that are often included in Inner Asia, such as Manchuria, are not a part of Central Asia by any of its definitions. Inner Asia may be regarded as the western and northern "frontier" of China proper and as being bounded by East Asia proper, which consists of China proper, Japan, and Korea.

The extent of Inner Asia has been understood differently in different periods. "Inner Asia" is sometimes contrasted to "China proper", that is, the territories originally unified under the Qin dynasty with majority Han populations. By the year 1800, Chinese Inner Asia consisted of four main areas, namely Manchuria (modern Northeast China and Outer Manchuria), the Mongolian Plateau (Inner Mongolia and Outer Mongolia), Xinjiang (Chinese Turkestan or East Turkestan), and Tibet. Many of these areas had been only recently conquered by the Qing dynasty of China and, during most of the Qing period, they were governed through administrative structures different from those of the older Chinese provinces. A Qing government agency, the Lifan Yuan, supervised the empire's Inner Asian regions, also known as Chinese Tartary. The frontier regions of China proper—Gansu, Qinghai, Sichuan, and Yunnan—are also sometimes included as part of Inner Asia.

The Western Xia or the Xi Xia (Chinese: 西夏; pinyin: Xī Xià; Wade–Giles: Hsi Hsia), officially the Great Xia (大夏; Dà Xià; Ta Hsia), also known as the Tangut Empire, and known as Mi-nyak to the Tanguts and Tibetans, was a Tangut-led imperial dynasty of China that existed from 1038 to 1227. At its peak, the dynasty ruled over modern-day north-central China, including parts of Ningxia, Gansu, eastern Qinghai, Northern Shaanxi, North Eastern Xinjiang, and Southwest Inner Mongolia, and Southernmost Outer Mongolia, measuring about 800,000 square kilometres (310,000 square miles).

The capital of Western Xia was Xingqing (modern Yinchuan); another major Xia city and archaeological site is Khara-Khoto. Western Xia was annihilated by the Mongols in 1227. Most of its written records and architecture were destroyed, so the founders and history of the empire remained obscure until 20th-century research in China and the West. Today the Tangut language and its unique script are extinct, only fragments of Tangut literature remain.

The Mongol heartland or Mongolian heartland is the contiguous geographical area in which the Mongol people have primarily lived, particularly as a historiographic term. It is generally considered to comprise the Mongolian Plateau and some adjacent territories, although its exact extent has been changing over the course of history—particularly since the rise of the Mongol Empire in the 13th century. The area is also described as the heartland of the Mongol Empire during its greatest extent, when it stretched from the Sea of Japan in the east to the Middle East and Eastern Europe in the west, making it the largest contiguous land empire in human history.

The modern area that the Mongols live in approximately includes: the modern state of Mongolia; the Inner Mongolia Autonomous Region, along with Dzungaria in Xinjiang and parts of Manchuria, Qinghai, and Ningxia in China; as well as the Buryatia Republic and a few smaller territories in Russia. The Mongolic peoples in this area share the common traditional Mongol culture as well as the Mongol language to varying levels. With the exception of the Mongolian state, all areas in the Mongol heartland have non-Mongol majorities.

Mongolian is the principal language of the Mongolic language family that originated in the Mongolian Plateau. It is spoken by ethnic Mongols and other closely related Mongolic peoples who are native to modern Mongolia and surrounding parts of East, Central and North Asia. Mongolian is the official language of Mongolia and Inner Mongolia and a recognized language of Xinjiang and Qinghai.

The number of speakers across all its dialects may be 5–6 million, including the vast majority of the residents of Mongolia and many of the ethnic Mongol residents of the Inner Mongolia of China. In Mongolia, Khalkha Mongolian is predominant, and is currently written in both Cyrillic and the traditional Mongolian script. In Inner Mongolia, it is dialectally more diverse and written in the traditional Mongolian script. However, Mongols in both countries often use the Latin script for convenience on the Internet.

Northwestern China (Chinese: 中国西北地区, also known as 西北 or 蒙新) is a region in the People's Republic of China. It consists of five provincial administrative regions, namely Shaanxi, Gansu, Qinghai, Ningxia, and Xinjiang.

The region is characterized by a (semi-)arid continental climate. It has a diverse population including significant ethnic minorities such as Hui, Uyghurs and Tibetans. Culturally, the region has historically been influenced by the Silk Road.

Sky burial (Tibetan: བྱ་གཏོར་, Wylie: bya gtor, lit. "bird-scattered") is a funeral practice in which a corpse is placed on a mountaintop to decompose while exposed to the elements, or to be eaten by scavenging animals, especially crows, vultures, bears and jackals. Comparable excarnation practices are part of Zoroastrian burial rites where deceased are exposed to the elements and scavenger birds on stone structures called Dakhma. Sky burials are endemic to Tibet, Qinghai, Sichuan, and Inner Mongolia, as well as in Mongolia, Nepal, Bhutan, and parts of India such as Sikkim and Zanskar. The locations of preparation and sky burial are understood in the Vajrayana Buddhist traditions as charnel grounds. Few such places remain operational today, as the practice was completely banned during the Cultural Revolution as a superstitious practice; in modern times, the practice is regulated by the Chinese Communist Party due to the ongoing decline of vulture populations.

The majority of Tibetan people and many Mongols adhere to Vajrayana Buddhism, which teaches the transmigration of spirits. In this tradition there is no need to preserve the body, as it becomes an empty vessel upon death. Birds may eat it or nature may cause it to decompose. The function of the sky burial is simply to dispose of the remains in as generous a way as possible (the origin of the practice's Tibetan name). In much of Tibet and Qinghai, the ground is too hard and rocky to dig a grave, and due to the scarcity of fuel and timber, sky burials were typically more practical than the traditional Buddhist practice of cremation, which has been limited to high lamas and some other dignitaries.

Gansu is a province in Northwestern China. Its capital and largest city is Lanzhou, in the southeastern part of the province. The seventh-largest administrative district by area at 453,700 square kilometres (175,200 sq mi), Gansu lies between the Tibetan and Loess plateaus and borders Mongolia's Govi-Altai Province, Inner Mongolia and Ningxia to the north, Xinjiang and Qinghai to the west, Sichuan to the south and Shaanxi to the east. The Yellow River passes through the southern part of the province. Part of Gansu's territory is located in the Gobi Desert. The Qilian mountains are located in the south of the Province.

Gansu has a population of 26 million, ranking 22nd in China. Its population is mostly Han, along with Hui, Dongxiang and Tibetan minorities. The most common language is Mandarin. Gansu is among the poorest administrative divisions in China, ranking last in GDP per capita as of 2019.

The Loess Plateau is a plateau in north-central China formed of loess, a clastic silt-like sediment formed by the accumulation of wind-blown dust. It is located southeast of the Gobi Desert and is surrounded by the Yellow River. It includes parts of the Chinese provinces of Qinghai, Gansu, Shaanxi and Shanxi. The depositional setting of the Chinese Loess Plateau was shaped by the tectonic movement in the Neogene period, after which strong southeast winds caused by the East Asian Monsoon transported sediment to the plateau during the Quaternary period. The three main morphological types in the Loess Plateau are loess platforms, ridges and hills, formed by the deposition and erosion of loess. Most of the loess comes from the Gobi Desert and other nearby deserts. The sediments were transported to the Loess Plateau during interglacial periods by southeasterly prevailing winds and winter monsoon winds. After the deposition of sediments on the plateau, they were gradually compacted to form loess under the arid climate.

The Loess Plateau is one of the largest and thickest loess plateaus in the world. Its 635,000 km2 area corresponds to around 6.6% of the land area in China. Around 108 million people inhabit the Loess Plateau.

The Dangqu, Dam Qu (Chinese: 当曲, p Dāngqū) or Dam Chu (Tibetan: འདམ་ཆུ, w 'Dam Chu, lit. "Marshy River") is the longest source of the Yangtze River, with a total length of 365.7 km (227.2 mi) located in the Qinghai province of the People's Republic of China. It runs from its source in an eastern offshoot of the Tanggula Mountains (唐古拉山), receives its main tributary the Buqu-Gar Qu River (布曲), and has a confluence with the Ulan Moron, where the Tongtian River is formed. The Dangqu has been discovered to be the actual and the longest headwater of the Yangtze River under modern criteria, although the nearby Ulan Moron or Tuotuo was traditionally regarded as the primary river of the two.