There's Trailside that goes from field to field.  I was told it was knobbed again, but who knows.  It gets knobbed/de-knobbed so much.
And there's Ecker Hill rail (down with a short flat).  Sick rail but again, I was told by some kids that go to school there that it was knobbed again.  the ones in the parking lots on main street are pretty short.  there is a green quad kink behind some apartments behind taco maker/jakes.  it's ok.