Ust-Udinsky Koān
| Ust-Udinsky Koān Усть-Удинский район |
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| — Koān — | |
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| Kok-ka |  Lō͘-se-a
|
|---|---|
| Chiu | Irkutsk Chiu |
| Bīn-chek | |
| - Lóng-chóng | 20,400 km2 |
| Jîn-kháu | |
| - Lóng-chóng | 13,361 lâng |
| Bāng-chām | adminust-uda |
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Ust-Udinsky Koān (Lō͘-se-a-gí: Усть-Удинский район) sī Lō͘-se-a Irkutsk Chiu ê chi̍t ê koān (raion).