Sort of. 9,000 seems high until you realize I start at 5,280. Of course, 14,000 is high, no matter where you start.
The highest I ever got was Independence Pass. Rode up from Aspen without my gear. IIRC, it's a hair over 12,100'. I had been riding out west stating in the spring and had been over Hoosier (11,500+) and Monarch Passes (11,300+) fully loaded. Despite that, I could feel it near and at the top of Independence Pass.
The year before there was a young guy on our x-country trip who was from Leadville. He noted that he lived at an altitude that was nearly twice as high as the highest pass we were going to cross during the entire trip. (Logan Pass in Glacier, at about 6,700').