Flag of the Selenge Aimag in Mongolia, from 1999.
Official blason, from the resolution no. 40 of 1999-12-24 by the aimag khural:
http://selenge.gov.mn/index.php?option=com_content&amp;view=article&amp;id=373:beleg-temdeg&amp;catid=53:belegtemdeg&amp;Itemid=101

The flag should be flown from a yellow pole with a trident on top (not shown)
Blue color for the eternal sky
Two bands of waves for the river giving fertility
A vertical grain spike for the fruits of the land
Thre red tassels for three "wise men" of the aimag
Own work; Faithful reproduction of blason
Latebird