Bhutan - The Kingdom of Bhutan is a landlocked South Asian nation situated between India and Tibet, China. The entire country is mountainous except for an 8-10 mile (13-16 km) wide strip of subtropical plains in the extreme south which is intersected by valleys known as the Duars. The elevation gain from the subtropical plains to the glacier-covered Himalayan heights exceeds 7,000 m. Cash crops, tourism, and development aid (the latter mostly from India) are also significant. Population - 672,425. Thimphu is the capital.