Minimalism at 10,000 Feet

Forest run in Leadville at 10,000'. It's an increasing challenge to run around (rather than through) fences. There's a 60 acre tract that is fenced, at great expense, fencing nothing in and nothing out (think Robert Frost). Took the next door dogs, Sugar and Happy. Now there's a pack. Actually felt rather fatigued setting out on the miniscule upward incline. The fatigue went away in the environment of soft, dry lodgepole pine needles underfoot. Turn-around at the cemetery. More than once Happy cut behind me and almost cut my feet out from under me. Trying to take itty bitty fast light steps. 30 minutes.