Crescent Creek is located in cooper landing, access to crescent creek is by Quartz Creek road.  Fairly easy access to this recreational area through state campground.  There is a day use parking area.  Dredges may be used from May 15th to July 15 with a free permit from the State of Alaska.  The gold here is very fine but hey there is always a chance of finding that NUGGET!  Have fun and respect the environment.  The below map  is from a free book provided by the state of Alaska, they usually give you one when you get your dredging permit.  It is however hard to find a copy online.