Thaba Bosiu (mountain at night) is a sandstone plateau in the valley of the Phuthiatsana River at an altitude of about 1'680 metres. It is located about 24 kilometres in the east of the capital city Maseru. The plateau covers an area of about 2.2 square kilometres and rises about 120 metres above the surrounding terrain.
Thaba Bosiu is a historic place in the history of Lesotho and known as a National Monument. On its top there is a graveyard where King Moshoeshoe I and his family members were buried. The most recent one is the grave of the King Moshoeshoe II (1938 - 1996).
About 2 kilometres in the east there is the famous rockformation known as Qiloane.
Lesotho 1974, Thaba Bosiu.
Lesotho 2002, Thaba Bosiu.
The stamp was issued in the series "International Year of Mountain".