What size? For general mountaineering I...
What size? For general mountaineering I use a 65 cm Raven but don't know what length to get for the Venom. The 50 would be useless for any of the lower angle snow fields that are common in New England, so it's 57 or 64. Which one? (I'm 5'10")
If you are just walking up snowfields with it, then the raven is more than enough axe. You would want to use this one for slightly more technical adventures, and having it a little bit shorter would be more beneficial. You already have a 65, so get yourself a quiver going and go with the 57.