This exhibit and the other primate ones are certainly sited in a unique environment for the species; it may not remind them of home but it is scenic, and I like the steep slopes which probably create a less confined feeling for the inhabitants.
I never figured a gorilla has much sense of how its wild relatives live or what their native forest looks and feels like. Those spruce and fir trees no doubt bother us more than they bother the animals.
But at Cheyenne Mountain, the air, humidity, elevation, long winter are soooooo different from how the species evolved that I do get curious about the acclimatization or other effects of such a difference.
Looks quite nice to me. I'd imagine the steep climb up the hillside keeps them quite fit. I wonder what the effects are on them at such high altitudes, since they aren't "Mountain" but "Lowland" Gorillas?