Head of upper gradient

It is seriously difficult to see (on aerial views online) the river through here. That could be in part due to the time of year and angle/perspective of the stellite views, but at least as much because this is high up on the watershed and the river is small/narrow here. Thus, expect that there may be much problem with overhanging trees/shrubs, as well as significant opportunity for deadfall and snags blocking your path. That could make this first area of good gradient very problematic. Proceed with caution!