In rock climbing, choss is a term used to describe rock faces unsuitable for climbing. Choss can be soft, unstable, or overgrown with vegetation. It can also be loose, making it difficult to find good holds. Climbing on choss can be dangerous, and climbers should always know the risks before climbing.
The term choss is thought to have originated in the United States, and it is believed to be a corruption of the word “chaos.” Choss is often used in a derogatory way, and climbers may refer to a route as being “chossfest” if it is particularly difficult or dangerous.
Here are some examples of choss:
- Soft rock that will not support the weight of a climber
- Loose rock that is likely to fall
- Overgrown rock with vegetation that makes it difficult to find good holds
- Wet rock that is slippery and unstable
Climbers should always be aware of the risks before climbing on choss. If you are not sure whether a route is safe, it is always best to err on the side of caution and choose a different route.