Originally Posted by
skywardhunter
Yep but FAA/CAA/etc mandated max altitude without oxygen is generally 10k with no time limit or 12k up to 2hrs
Some Coloradans live every day at over 10,000 feet. Trail Ridge Road in Rocky Mountain National Park is at 12,000 feet. @:-)
Last edited by DenverBrian; Sep 19, 2019 at 3:11 pm
Reason: Confused Leadville with Trail Ridge Road