So there was a comment by Scoobierex in another thread about the mountain road views. Figured I would post a few thingies that show the roads.
Feb 2016 with a local Ron on GMR (Glendora Mtn Rd). I went to Cow Canyon Saddle but didn't quite get 5,000 ft of gain so I turned around at the bottom and started up for a bit to hit my goal of 5,000 ft. Ron went down Baldy Rd (steep fast dh 7 miles or so). I went back down GMR for the views and switchbacks (21 mile curvy descent).