A Kingdom Sealed by Geography
The former Kingdom of Lo, now known as Upper Mustang, exists in a high-altitude desert, shielded from the Indian monsoon by the Annapurna and Dhaulagiri mountain ranges. This isolation created a unique cultural repository. Officially a restricted demilitarized area until 1992, the region remained largely inaccessible to outsiders. This seclusion helped preserve its centuries-old Tibetan Buddhist traditions, which remained intact while facing destruction elsewhere.
The kingdom was founded around 1380 by Ame Pal, who also established the walled capital city of Lo Manthang. For centuries, Lo controlled a strategic section of the salt trade route between Tibet and India, which funded the construction of its monasteries, or gompas. The monarchy persisted in a ceremonial role until it was officially abolished by the Nepalese government in 2008. The last official king, Jigme Dorje Palbar Bista, could trace his ancestry back 25 generations to Ame Pal.
The Vertical World of the Sky Caves
Pocking the ochre and sienna cliffs of the Kali Gandaki River valley are more than 10,000 man-made caves. These "sky caves" are among Nepal's greatest archaeological mysteries. Research indicates their use across three distinct periods. The oldest caves date back as early as 1,000 BCE and functioned as burial chambers. Archaeologists exploring these tombs in the mid-1990s found human remains on wooden beds, some as old as 3,000 years.
Around the 10th century, the caves were repurposed as living quarters, likely for protection during periods of conflict in the valleys. By the 1400s, many caves had been converted into meditation chambers, military lookouts, and monastic sites. Expeditions in 2007 and 2008 uncovered 13th-century Buddhist murals, precious manuscripts, and 600-year-old human skeletons. Some caves, like the Luri Gompa monastery, are still active religious sites, containing frescoes and ancient texts.