Location
Lat 47 47' Long 112 07' located at Obo Somon. Located rougly 140km east of Öndörhaan (Undur Khan) and about 165km west of Choybalsan (Sanbeisu, Bayantümen, Bain-Tumen, Bayan Tumen). Also known as "Obo Somon", "Bayan Obo Somon", "Bayan Ovod" or "Bayan-ovoo".

Construction
Built during the summer of 1939 as a field aerodrome and used by aircraft during the during the Battle of Khalkhin Gol / Nomonhan Incident May - September 1939.

Units Based at Tamsagbulak
4th Heavy Bomber Air Regiment (TB-3) from Domna circa July - September 1939

Afterwards, expanded and used during and after World War II by the VSS.

Dr. Voaden adds:
" I have a note --incomplete -- from a list of VVS unit dispositions, showing bombers (type not known) at or planned to be at Obo-Samon during Spring/Autum 1941. The war may well have changed these plans."

Today
Postwar was listed as a 3,300' runway. Disused since 1989 or earlier.

References
Japan Against Russia In The Sky of Nomonhan page 59
Thanks to Dr. Denys Voaden for additional information

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Last Updated
April 19, 2025