A mountain pass is a navigable route through a mountain range or over a ridge. These passes are often lower than the surrounding peaks, making them easier for travelers and vehicles to cross. They can be natural formations or created by human engineering, and they play a crucial role in connecting different regions. Mountain passes are important for trade, transportation, and tourism. They can provide scenic views and access to outdoor activities like hiking and skiing. Famous examples include the Khyber Pass in Pakistan and the Col de l'Iseran in France.