I did not have enough time to do the longer one I was projecting, but I had a truly lovely 90-minute run in any case, one of the most enjoyable runs I have had all year. It is on the frigid side of beautiful (mid-30s, windy), but gloriously sunny and bright...
I am very lucky to have the flexibility with my work schedule to be able to run in the daytime like this during winter - we are definitely coming into the season where evening runs no longer seem sensible, enjoyable or even particularly safe. I avoid running by myself in either park (Riverside or Central) after dark in cold weather - Riverside in particular gets very deserted, and is not safe for a woman running alone, and drivers honestly just don't expect to see runners crossing at intersections on a cold winter's night.
Anyway - BEAUTIFUL!