84 feet

That's what Google Earth tells me the elevation is from the top of the path down to the bottom. Or vise versa which is much harder.

6 min warmup
Some number of sets with some number of run minutes with some number of walk minutes.
5 min cool down

The plan called for 45 min 5r 2w. And I've totally spaced on what I actually did. I'm not even convinced I did the same set 4 times. I do know total time was 46:19, and I got all the way to the golf dome. It's not that I stopped running because I couldn't go on. I'm pacing myself so I'm in control of my breathing. I think I just messed up reading my watch, or lost track of when I started or stopped a segment. The run was good though. For a while it sounded like the pavement was hollow under my feet, which was sort of odd. I remember pushing hard on one of the middle sets. Must be time for bed. This rest thing is becoming really important to me.