Sledding Wa

Where is a good place for snow sledding in the state of Washington?
My friends and I want to go snow tubing and sledding for the first time on 10 December and we have to find a place to go in the state of Washington. Can you tell us a good place to go on the west side and what we need a permit or what is what you need to bring with us?
The snow park has a hill at Hyak Sledding: http://www.parks.wa.gov/winter/parks/nonmotorparks.asp?Region=3
The Upsidedown – Before Remember – Sledding in Fircrest, WA