Geography of Laos

Laos is a landlocked country in Southeast Asia and the thickly forested landscape consists mostly of rugged mountains, the highest of which is Phou Bia at 9,242 feet (2,817 m), with some plains and plateaus. The Mekong River forms a large part of the western boundary with Thailand, whereas the mountains of the Annamite Chain form most of the eastern border with Vietnam.

The climate is tropical and monsoonal. There is a distinct rainy season from May to November, followed by a dry season from December to April. Local tradition holds that there are three seasons (rainy, cold and hot) as the latter two months of the climatologically defined dry season are noticeably hotter than the earlier four months. The capital and largest city of Laos is Vientiane, and other major cities include Luang Prabang, Savannakhet and Pakxe.

In 1993, the government set aside 21% of the nation's land area as National Biodiversity Conservation Areas (NBCA), which may be developed into a national park system. If completed, it is expected to be the most comprehensive and one of the finest national park systems in Southeast Asia.[citation needed]
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"Living fossil" found in Laos

Laos is the home to some of the most spectacular animal species in the world, most notably the Indochinese tiger, the giant gaur, and the Asiatic elephant. A number of animal species have been discovered or re-discovered in Laos in recent years. These include the striped or Annamite rabbit, the saola, and most recently the Laotian rock rat or kha-nyou.

The country is one of four in the opium poppy growing region known as the "Golden Triangle". According to the October 2007 UNODC fact book "Opium Poppy Cultivation in South East Asia", the poppy cultivation area was 1,500 hectares (3,710 acres), down from 1,800 hectares (4,450 acres) in 2005.