[I believe there can be no doubt that Etzina must be looked for on the

river _Hei-shui_, called _Etsina_ by the Mongols, east of Suhchau
[I believe there can be no doubt that Etzina must be looked for on the
river _Hei-shui_, called _Etsina_ by the Mongols, east of Suhchau. This
river empties its waters into the two lakes Soho-omo and Sopo-omo. Etzina
would have been therefore situated on the river on the border of the
Desert, at the top of a triangle whose bases would be Suhchau and Kanchau.
This river was once part of the frontier of the kingdom of Tangut. (Cf.
_Devria, Notes d"pigraphie mongolo-chinoise_, p. 4.) Reclus (_Gog.
Univ., Asie Orientale_, p. 159) says: 'To the east [of Hami], beyond the
Chukur Gobi, are to be found also some permanent villages and the remains
of cities. One of them is perhaps the “cit?d”Etzina” of which Marco Polo
speaks, and the name is to be found in that of the river Az-sind.’