Lieshan Ancient Tombs

[1] Nestled at an elevation of 3,200 meters on the forested slopes of the Nyenchen Tanglha Mountains, the tombs blend into the alpine ecosystem, with their stone-and-earth structures designed to withstand seismic activity and harsh weather.

[2] Archaeological studies show that builders used slate and granite from the area and put it on tiered platforms to keep the soil from washing away and protect the juniper and rhododendron forests nearby.

Excavations in the 1980s uncovered intact wooden coffins sealed with yak leather, indicating advanced preservation techniques adapted to the humid subtropical climate of southeastern Tibet.

[4] Modern conservation efforts since 2010 have prioritized ecological balance, employing non-invasive technologies like ground-penetrating radar to minimize disturbance to the site's fragile permafrost layer.

The tombs' integration into the natural landscape offers insights into how early Tibetan societies engineered sustainable burial practices in ecologically sensitive zones.