Green circle, blue square, black diamond ... for every other ski run difficulty level. But that’s perhaps too much detail if you’re just trying to understand ski slope ratings.

For a black diamond run, the features and terrain might vary depending on the mountain, ski resort, and location of the slope. These runs may be blue-square runs when the snow is groomed or fresh ...

Across more than 1,600 skiable acres are 76 named trails, among them the North Face, North America’s longest continuous double-black-diamond ski run. On my first ski day, six inches of fresh ...