Abra Laguna Morijon is a high mountain pass at an elevation of 4.901m (16,079ft) above the sea level, located in Sur Lípez Province in the Potosi Department of south-western Bolivia. It's one of the highest mountain roads of the country.
The road to the pass is gravel. It’s a a short climb, but a very tough one. The surface isn’t great and there are some really steep sections. Do not take this drive if you have respiratory problems or any type of heart condition. Notorius lack of oxygen that tests the organisms and a high degree of steepness. Most people feel altitude sickness at around 2,500-2,800 meters. Extremely low oxygen for engine combustion. A major hazard of altitude is the sickness that can indiscriminately affect anyone regardless of age or fitness. The summit has about 40% less oxygen than at sea level, thus breathing is more difficult. Your pulse rate will increase and movement will be more laborious at the summit. The high elevation with its risk of altitude sickness, weather concerns, steep road grade, and overall inaccessibility make the pass dangerous and summit trips difficult.
Pic: Benoît L'Heureux