Mandatory air
A section of a ski line where a jump is unavoidable because the terrain below is impassable on the ground.
A section of a ski line where a jump is unavoidable because the terrain below is impassable on the ground. It is a term used in mountain terrain and piste features. Also known as "mandatory".
Mountain terrain varies enormously between resorts and even between different parts of the same mountain. Mandatory air is something you will encounter regularly when reading piste maps and resort guides. The gradient, aspect and altitude of the terrain all affect snow quality and difficulty. Resort grading systems (green, blue, red, black) help skiers identify suitable terrain.
Understanding mandatory air helps you read the piste map and choose terrain that matches your ability. Always check local signage and conditions before venturing into unfamiliar areas.
Related terms include Cliff drop, Couloir and No-fall zone.