Headed to Denver today

I have noticed when people from around here talk about sections of interstate to be cautious about, they don't mention cities. No talk similar to how people back east talk about getting through Atlanta, or Washington, D.C. 

Around here, the talk is about going over the passes. Kind of a Rocky Mountains version of going over Black Mountain in NC. I think we have 2 passes to cross west of Denver today.     

Edit: I looked it up. Vail Pass, 10,666 ft elevation. Loveland Pass, just under 12,000 ft I think the map said.