Benjamin Morgan Harrod's Mississippi River Atlases.
The earliest volume, The Preliminary Map of the Lower Mississippi River (1881-1885), was printed by Julius Bien after maps by Edward Molitor, but someone -- possibly Harrod -- added penciled annotations to certain plates. Sheet No. 22, dated 1884, includes a number of these sketched amendments. They center on Shreve's Cut Off between Carr's Plantation landing and S.L. James's Angola Plantation landing (detail above).
Here is a more expansive view of the stretch today, from Google Maps.