This gigantic boulder was seen hurtling through floodwaters during a flash flood before striking the Nepal–Tibet border area

Imagine if it stays there. They can use it as an anchor for the footbridge to keep it more stable in windy conditions.

La zone frontalière est bien au-dessus, au niveau de la montagne qui s’est effondrée, côté Tibet, avec son glacier

Hard rock for sure, rolling on top of the conveyer belt of smaller rocks and boulders in base flow, reaching a suspension bridge way above dry point cavity of river.