Wisalla
Wisalla is a high mountain pass at an elevation of 4.304m (14,120ft) above the sea level, located in the Andes of Bolivia. This is a maintained road where a high clearance 2WD vehicle is able to travel safely at low speeds on long dry straight-of-ways, without losing control due to wash boarding, ruts, or dips.
The road to the pass, located within the Sajama National Park and Natural Integrated Management Area, is gravel. This track can get very muddy and slippery after rain making it challenging to get through. During and after a storm the road may be impassable, even with a four-wheel-drive vehicle. It links the town of Andacollo and the D-457road.