There’s a few ones you can choose to use, its the vampire memes that actually aged like milk.
So regarding the mountains there a few rationals to keep in mind. The first important one is that this is a very thin range in the grand scheme of things, so adding in traversable valleys would look a bit off for me. But that doesn’t mean I wont since ill have plenty of opportunities to try pretty much anything.
But its important to note that the shading of mountains as is, indicates a lot of peaks and valleys, and I usually overdo them which results in a more complex crest. Even if a real mountain range like that is probably too grand an example. But this is less about a more real life depiction (since I’ve already done real world mapping exploits, some of which have already involved the Alps)
But the short answer is that the range is too thin to justify having pronounced cracks/valleys.