The Himalayan mountain range and Tibetan plateau have formed as a result of the collision between the Indian Plate and Eurasian Plate which began 50 million years ago and continues today. Book covers explorations and trek in several parts of the Himalaya: Tibet, Arunachal Pradesh, Sikkim, Bhutan, Uttarakhand, Himachal Pradesh, East Karakoram and Siachen Glacier. It includes more than 20 sketch-maps covering each region and trek with several photographs. Stories of each trip covers historical details, routes and events of each trip covering the region in detail. It can be used as a book of mountain events, climber's reference book or trekking guide as desired. The expeditions were with famous the British, French, American and Japanese climbers as members. Each of them leading climbers like Sir Chris Bonington, Hiroshi Sakai, Stephen Venables, Mark Richey and Jeff Tripard with many others.