The Grindstone Creek system is a long system.  The part that we will go to runs below the RBG.  The best way to get there is drive to the RBG, turn off Plains road and drive down the road past the RBG building.. It winds down to a dead end.  We would park our cars in the small parking area and walk across the bridge.  At the base of the hill there is a path that follows the creek.  Staying to the right you come to a large open area.  There are two large bridges there.  From where we park our car to the two bridges and beyond there are lots of photo opportunities. Best of all it is free.
We can leave the QEP at 9:00 am and offer car pooling