Lafeyette Colorado has the best skarepark I've seen yet... The overall flow and creativity of this place is amazing!! And there is something for everybody no matter what u skate... I have visited hundreds of concrete skateparks around the world and this is the best in my opinion as of today.
These photos do not do the place justice... The best part about the park is all the creativity they put into it using rocks and boulders. If your near Boulder go there!!