Drainage areas (as calculated by USGS StreamStats 4.0 Beta Software)

At an uppermost possible/likely put-in (Russelville-Winchester Road, about 0.3 mile SW of Juillerat Road, right about at the 900' elevation line) drainage area is ~3 square miles.

At our listed/recommended put-in, it is 54 square miles, and at the listed take-out (at Rt.763), it has doubled, to 108 square miles.