Sometimes running "high" is not about speed or competition, even if you are in the Denver area. Sometimes it's about running with someone you love and are exceedingly proud of. That has been my opportunity and my joy for my last two runs. That doesn't mean that these have been my best runs, given the altitude, but they have been some of my most enjoyable runs.
Now I head back to the reality of the MidWest and running alone while I learn to run long. New goal: run a half-marathon. May 24th. Plenty of time, right?