US-34, aka Trail Ridge Road, is the highest-elevation continuous paved route in the United States. It peaks at 12,183 feet. It’s also called Beaver Meadow National Scenic Byway, and connects Grand Lake and Estes Park by way of Rocky Mountain National Park.
Here I am with my 10-speed on Trail Ridge Rd on my cross country bicycle trip. I must admit I was gasping for air, I was from Georgia elevation 420 feet. Not as much oxygen on Trail Ridge Rd.