Amber Finlay | February 14, 2024

The Ski Trail Ratings Edition

On global standardization, the stoplight system, and Walt Disney.

Amber Finlay (AF) previously contributed Amsterdam Retail , Seoul Retail, Movies on Tik Tok, Good Place , Sonic Parenting and the Lightning Edition

Amber here. I’ve been skiing for most of my life, but I’ve never really thought too much about ski trail ratings until last week, when my husband was persuaded by our 12 year old to do a double black diamond at our local mountain (The Ripper, aptly named). This felt exponentially harder than the blacks on the mountain, and we had a chairlift conversation about whether ski trail ratings were based on orders of magnitude like the Richter Scale, on some standardized vertical grading, or on total subjectivity. The latter is sort of what I’d assumed, based on how varied ratings can be mountain to mountain and the general vibe of most ski resort staff 🤙.

Why is this interesting?

There were no universal trail ratings before 1964. At that point, mountains were being pressured to mark trails for insurance purposes, and an organization formed to develop a basic system.  The colors and shapes we have at resorts in North America today were actually reimagined by Walt Disney, as part of a California ski resort project that never came to fruition. Europe has a more varied ratings system, to account for more off-piste areas on the mountains, but the general idea is the same.

The universal system is pretty simple, and is based roughly on the vertical grade of the trail. But the resorts themselves each rate their own trails, so there is a lot of subjectivity. You can usually assume that the trails at a given mountain are rated relative to others on that mountain–not in relation to other mountains. In addition to vertical grade, other elements are also considered: obstacles or trees, the narrowness of the trail, the degree of grooming (generally most double blacks aren’t groomed), etc.  

There’s a pretty wide variance when it comes to West/Rockies and East Coast skiing (I know, I know) in the US, and between Europe and the US as well. Because East Coast mountains are smaller, trails that are rated as black diamonds would likely feel much easier compared with blacks out west.  (However, the East Coast is icy AF, so this should be considered). There are other more complex trail ratings when it comes to backcountry skiing and avalanche terrain, but they all kind of follow the basic stoplight rating system we use for lots of things:  Green good, red bad. 

If the ratings system feels inconsistent, you can always try to divine what you’re headed for by the trail name. If it’s called Body Bag, believe it. (AF)

Thanks for reading,

Noah (NRB) & Colin (CJN) & Amber (AF)

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