Bumthang

mon kha ne'u ring - Meadow of Mönkha. Possibly identical with Mönkha Senge Dzong, a cave situated to the east of Bumthang in Bhutan which was used by Padmasambhava and later by Yeshe Tsogyal as a sacred place for the sadhana of Vajra Kilaya [RY]

mon kha seng ge rdzong - Mönkha Senge Dzong. a cave situated to the east of Bumthang in Bhutan which was used by Padmasambhava and later by Yeshe Tsogyal as a sacred place for sadhana [RY]