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Re:Three American Climbers Solve the 'Last Great Problem in ... by whymauri on Friday December 01, 2023 @06:42PM (#38494152)
This is a mixed route, so the comment above cites three grading scales:

https://en.wikipedia.org/wiki/Grade_(climbing)

The Mixed Climbing, Alpine Ice, and Aid Climbing grade scales, respectively. I wish I could provide more detail into each than the Wikipedia article, but the reality is each grading scale could probably warrant a small book of history and local/regional ethics.

Re:Three American Climbers Solve the 'Last Great Problem in ... by dgacmu on Friday December 01, 2023 @06:52PM (#38494229)
To build on this a little - M7 involves climbing a mix of ice and rock, but instead of using conventional fingers and rubber-soled climbing shoes, you'd do the rock-only parts by "dry-tooling" - using your ice axe and crampons on the bare rock. It's kind of a weird experience.