The height of the mountain is the difference in height between the lowest and highest point. Tall mountains can offer longer pistes, better views, and often better snowfall.
Ski trail difficulty is measured in "percent slope", a system in which a 100% slope equals a 45-degree angle. Medium difficulty trails (marked with a blue square) have a slope gradient between 25% and 40%. These trails are ideal for regular skiers.
In resorts which allow off piste-skiing, you can ski anywhere which is great for adventurous types. However, there are hazards such cliff edges, avalanches or simply getting lost and suffering exhaustion.
Ski trail difficulty is measured in "percent slope", a system in which a 100% slope equals a 45-degree angle. High-difficulty trails (marked with a black diamond) have a slope gradient of more than 40%; such trails are designed for experienced skiers who enjoy a good challenge.
Cross-country skiing is an Olympic sport that provides great exercise for both the upper and lower body. Resorts that keep the cross-country skiing trails open for the general public attract professional and casual skiers.