I'm seeking information about the Charley River from Three Fingers airstrip down to the Yukon River. We are planning a raft trip June1-14th. The largest raft will be 14 fter. What kind of white water can I expect in the upper river, especially between three fingers and Gelvin airstrips? If we miss runoff, will there be lots of dragging over rock gardens? Any suggetions on places to camp or hike?