Karma Chakme's Mountain Dharma as taught by Khenpo Karthar Rinpoche, at Karma Triyana Dharmachakra in New York from 1999 to 2003. This is the first of a five-volume set, published separately at six-month intervals. Translations by Lama Yeshe Gyamtso and Chojor Radha. “Mountain Dharma is a complete text for those who want to practice Tibetan Buddhism. This text contains everything you need to undertake any practice, from the most basic to the vajrayana. If you become well acquainted with this text, you have everything you need to achieve enlightenment.” This book, Volume One, contains Entering Dharma's Gate (the four ordinary foundations) * Renunciation * Various Greater and Lesser Vehicles * How to Keep the Three Vows * Taking Refuge * The Generation of Bodhicitta * Protection of the Three Jewels Through Meditation * Dispelling All Obstacles * Purification of the Karma, Vajrasattva Practice * Offering the Mandala * Guru Yoga His Holiness the Sixteenth Karmapa (Rangjung Rikpe Dorje, 1923-1981) indicated that it was his wish that Khenpo Karthar Rinpoche present Karma Chakme's Mountain Dharma to Western students. In accordance with this wish, Khenpo Rinpoche began teaching this text in the Year of the Earth Rabbit, February 1999, at Karma Triyana Dharmachakra, the North American seat of His Holiness, located in Woodstock, New York. The teachings took place on weekends over the subsequent four years concluding in the Year of the Water Sheep, April 2003. The original text by Karma Chakme Rinpoche was written in the Year of the Horse, 1659. The text from which Khenpo Karthar Rinpoche taught was printed and published at Tashi Jong, Himaechal Pradesh, India, and consists of fifty-four chapters and 595 pages. Karma Chakme requested that the text always be copied and presented in its completeness to ensure that nothing be lost. Because Mountain Dharma is a complete work of the complete path, Khenpo Karthar Rinpoche follows Karma Chakme's instructions, maintaining the integrity of the original text. We also respectfully follow their wishes and instructions; however, due to the length of the text and commentary, we will publish Khenpo Rinpoche's commentary on Mountain Dharma in five volumes, with a separate volume for the Tibetan text. Rinpoche followed the same order as the original Tibetan text with two exceptions: he began with the namthar (spiritual biography) of Karma Chakme, which in the Tibetan text is at the end; Rinpoche also omitted the chapters that he considered restricted. These restricted or secret parts will be taught and published separately at Karma Ling Retreat Center for use by qualified students. The result of these efforts is that the entire contents of Karma Chakme's Mountain Dharma will be available in English for the first time.