So, every hill worth climbing over has an annoying collision mesh attached to it, which seems fairly pointless.
My question is, are these separate meshes or are they attached to the rocks?
I'm asking this because I'd really like to use a .esp that gets rid of them but mesh edits are a no-no for me.

You can easily edit those barriers out - they are mere collision planes/volumes used to section off areas where navmesh would not work out well (very complex terrain, and ultra-narrow pathways), and to bound the region of the Mojave.

O.

Wow, thanks a ton.

Would there be any unintended side effects from doing that? (and what might they be?)

**Was this a tile-set mistake, or intentional?

Companions/NPCs could mess up as it is a nav mesh issue. They can't really climb the hill though so that isn't much of a threat.

What about those of us playing on a console that can't mod things?

That is the price of playing on a console, isn't it?

More like the price of not utilizing your console's "unrelased" features.

True