The Kingdom of Bhutan remained largely cut off from the rest of the world up until the early 1960’s. Entering the country was difficult as it was only accessible by foot from two main entry points, one in the North and another from the South. The Northern route was through Tibet, crossing high mountain passes that were inaccessible throughout the winters. The second entry route from the South came through the plains of Assam and West Bengal. The high, frozen passes in the North and the dense, jungles in the South made it extremely difficult to enter the country.
However, carefully planned economic development has made the country much more accessible and there are now a network roads entering and traversing the country, as well as one international and multiple domestic airports.