In Gale’s book “Lost Gold of the Uintah” he states that this is “found on the high ledges near the mouth of the South Fork of Rock Creek”. Another reason why you have to second guess everything you read in the treasure books. While it is high on the ledges, it is nowhere near the mouth of South Fork. The “Thunderbird” symbol is located high on the ledges near the top of Lake basin facing the Blind Stream road.  While many believe this to be carved, I think it is fairly easy to determine that it is just a natural feature when you are up there looking at it.