The Sultan pit is still open as far as I know.
DIRECTIONS: Take Hwy 2 through Sultan. You will pass all the way through town, and you will start up a hill. At the top of the hill is a light, this is Sultan Basin Road, Take a left at this light. Drive past a few housing developments. Stay on this road until you get to 116th, which will be on your left. Take a left on 116th, go through the gate, and the gravel pit will be on the left. It's VERY easy to find, as long as you don't miss 116th! If you start getting into the 300's on street signs, you have gone too far.