South, Little, or New Suli or Senie Lake is a small ephemeral lake in Golmud County, Haixi Prefecture, Qinghai Province, China.

It lies in the southwest corner of the Qarhan Playa in the southeast Qaidam Basin.

It is principally fed from the southwest by the Zaohuo or Little Zaohuo River (小灶火河, Xiǎozàohuǒ Hé)[1] and consists of a 1.5 km2 (0.58 sq mi) basin which gradually evaporates into three smaller ponds.

As part of the Bieletan subbasin, it is rich in lithium chloride.

[2] It takes its name from its position relative to the larger Suli Lake, itself supposedly a transcription of a Mongolian placename derived from the word for "temples" or "sideburns".