Mine No. 666, Ohngaing, Mogok Valley, Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar
The mine is located at the bottom of the hill adjacent to the Shan village of Ohn-gaing. Rubies and other gems are mined from the alluvium in an open-pit scheme and at the nearby primary deposit. A mining scheme started in December 1997 was terminated in 2000, owing to depletion of the mine.Ref: Ted Themelis (2008) Gems & mines of Mogok, p. 214