I used my Bazooka Gold Trap in Kaufman Creek.  I dug one hole along the bank down to a blue clay layer.  I only ran about 6 quarter full buckets of unclassified material.  I got fine gold and a bunch of black sand.  It was a fair rate of recovery for only a short time in an area where I have never prospected and had very little knowledge.  It is a beautiful place too with some good dispersed camping.