We just returned from Chitina and was wondering if any one has any experience dipping further upriver from the bridge?

The river forks and starts to braid some, I have been up a little ways on the left channel, but suspect the main channel is to the right.
Legally the subsistence permit allows dipping all the way to the Slana. Just wondering if anyone has explored up that way and found any decent spots to dip from a boat?