We run around the large reservoir at the bottom (by the tennis courts), run up the long way by the now closed reservoir, and then do a second loop around the raised reservoir. We run up one last hill to the top, and then down down down! It's slightly over 5k (3 miles); pace adjusted for the group.
[ https://www.strava.com/routes/4887546 ]
[ https://www.portlandoregon.gov/parks/finder/index.cfm?action=ViewPark&PropertyID=275 ]
Address where we meet up is right next to 6220 SE Salmon St.