In the Himalaya the peaks exceeding 24,000 feet in height, that have been measured, number over fifty,[A] whilst those above 20,000 feet may be counted by the thousand. Every year, officers of the Indian Army and others in search of game wander through the valleys which come down from the great ranges, but up to the present time only a few mountaineering expeditions have been made to this marvellous mountain land. For this there are many reasons. The distance of India from England precludes the busy man from spending his summer vacation there; the natural difficulties of the country, the lack of provisions, the total absence of roads, and lastly, the disturbed political conditions, make any ordinary expedition impossible. Moreover, although the English are supposed to hold the southern slopes of the Himalaya, yet it is a curious fact that almost from the eastern end of this range in Bhutan to the western limit in the Hindu Kush above Chitral we are rigorously excluded. About the eastern portion of the Himalaya in Bhutan, and the mountains surrounding the gorge through which the Bramaputra flows, we know very little, as only some of the higher peaks have been surveyed from a distance. Next in order, to the westward, comes Sikkim, one of the few districts in the Himalaya where Europeans can safely travel under the very shadows of the great peaks. Next comes the native state of Nepaul, stretching for five hundred miles, the borders of which no white man can cross, except those who are sent by the Indian Government as political agents, etc., to the capital, Katmandu. It is evident at once to any one looking at the map of India, that Nepaul and Bhutan hold the keys of the doors through which Chinese trade might come south. The breaks in the main chain in many places allow of trade-routes, and in times gone by even Chinese armies have poured through these passes and successfully invaded Nepaul.