Very nice! I believe the highest I have been, or at least the highest I have hiked, was 12,441 feet, to the summit of Baldy Mountain, on the Philmont Scout Ranch.
This was a long time ago, in the mid 1980s, the same trip where we stopped overnight at Mystery Flesh Pit National Park in Texas. I'd link to my recollections about that, but my Gemini server is down the now.