I can't speak to black bear terrain use in mesa country, but this is what i know from here in BC.
In the spring, sows with cubs and smaller, less dominant bears will try to feed in pockets and be in terrain that allows them to either tree quickly or to utilize rocky outcrops for escape. Where i live and hunt black bears are not the alpha predator. Grizzly bears and wolves can hit them hard.
Areas with houndsmen that run bears also create critters that are situationally aware of terrain.
Sows with one year old cubs are even more vigilant during late May/early June during rut when boars will kill yearlings to push sows into estrus. They are never more than a quick dash from trees and mature sows are VERY aware every second where their cubs are and where they themselves are in relation to safety.
A big black bear boar is comfortable in open feeding spaces and will traverse across areas with less escape cover. They walk like they can handle themselves because they usually can. I've watched big spring boars sleep in open spaces knowing they are safe.
A big boar will sprint for fifty yards, stop and face off. Young boars and sows will run and keep running.
Black bears are territorial, and there is always competition for feed, cover and sows. I watched a boar for eleven years as he went from early adult trying to stake a claim to "king of the hill" to the last autumn when i knew it was his last (the joys of chasing bears with a longbow). He taught me a lot about terrain and territory.