It is spoken in a dozen or so villages in Dongxiang Autonomous County, Gansu Province, China.
The linguist Mei W. Lee-Smith calls this creole language the "Tangwang language" (Chinese: 唐汪话), based on the names of the two largest villages (Tangjia 唐家 and Wangjia 汪家, parts of Tangwang town) where it is spoken.
[2] The Tangwang language uses mostly Mandarin words and morphemes with Dongxiang grammar.
[2] For example, while the Mandarin plural suffix -men (们) has only very restricted usage (it can be used with personal pronouns and some nouns related to people), Tangwang uses it, in the form -m, universally, the way Dongxiang would use its plural suffix -la.
The Mandarin pronoun nǐ (你) can be used in Tangwang as a possessive suffix (meaning "your").