Key takeaways
- A piste is a marked, groomed, patrolled ski run at a resort.
- 'On-piste' is prepared resort terrain; 'off-piste' is ungroomed, unpatrolled snow.
- Pistes are graded by color (e.g., green/blue/red/black), with meanings varying by region.
- Skiing on-piste is the patrolled, lower-risk option; off-piste carries avalanche and hazard risks.
French 'piste' (track or trail), from Latin 'pista'.
What a piste is
A piste is a marked, maintained ski run at a resort — usually groomed smooth by machines, signed, and within the patrolled area. It’s the prepared terrain resorts provide for skiing and snowboarding. Skiing ‘on-piste’ means staying on these runs; ‘off-piste’ means heading onto the ungroomed snow beyond them.
Piste difficulty colors
Pistes are graded by color, and the meaning varies by region:
- Europe: green/blue (easy), red (intermediate), black (advanced).
- North America: green circle (easy), blue square (intermediate), black diamond / double black (advanced/expert).
Always read the local trail map’s legend before choosing a run.
A newer skier sticks to green and blue pistes to build confidence on groomed, patrolled snow, checking the resort map’s color key — and recognizes that ducking a rope onto unmarked off-piste snow means leaving that patrolled safety.
On-piste vs off-piste
On-piste is groomed and patrolled with lower risk; off-piste offers powder and adventure but brings avalanche danger and hidden hazards. See piste vs off-piste, which leads toward backcountry skiing.
The bottom line
A piste is a resort's prepared, patrolled, color-graded ski run — the safer, groomed playground most skiing happens on. Knowing the local color system keeps you on runs that fit your ability, and understanding the line between on-piste and off-piste keeps you aware of when you're leaving patrolled safety for avalanche terrain.
Frequently asked questions
What is a piste in skiing?
A piste is a marked, maintained ski run at a resort — typically groomed flat by machines, signed, and patrolled. It's the prepared terrain that resorts provide for skiing and snowboarding, as opposed to the natural, ungroomed snow off to the sides.
What does off-piste mean?
Off-piste means skiing on ungroomed, unmarked, and usually unpatrolled snow outside the prepared runs — within or beyond the resort boundary. It offers powder and adventure but carries greater risk, including avalanches, hidden hazards, and no grooming, so it demands more skill and avalanche awareness. See our piste vs off-piste comparison.
What do the piste difficulty colors mean?
Pistes are graded by color, but the system varies by region. In Europe, green and blue are easy, red is intermediate, and black is advanced; North America uses green circle (easy), blue square (intermediate), and black diamond / double black (advanced/expert). Always check the local trail map's legend.
Sources
- Ski area & slope safety — PSIA-AASI
- Mountain travel & snow — The Mountaineers