If your willing to go a bit out of your way.
-GW has a very sick down J rail taht nobd has hit right by its tennis courts. youll need a drop in for sure but a good rail.
-south high school has a classice down flat down as seen in the nick martini superunknown
those are the only two I know that are resonably close to cherry creek if your willing to go further into denver there are aloth more tech and fun things to hit