2019 Map of Nushagak Bay D-2 NE

Further inland and to the north, the terrain transitions into a labyrinth of aquatic features, including Rolphe Slough and various unnamed tidal channels that thread through the marshy lowlands. Grassy Island sits at the northern edge of the bay, marking a point where the water begins to narrow. The map's detailed hydrography highlights the shifting nature of this estuarine environment, which remains vital for subsistence and commercial activities in the Dillingham Census Area.