2021 Map of Unimak D-1 NW

About this map

Bering Sea waters dominate the northern reaches of this coastal quadrangle, where the shallow shelf of the Slime Bank meets the Aleutian shoreline. The landscape is characterized by the complex tidal environment of Urilia Bay, an area defined by extensive wetlands and coastal transition zones. This survey captures the remote geography of the Aleutians East Borough, documenting the specific intersection of maritime features and the interior coastal plain during the early twenty-first century. The mapping reflects the dynamic nature of these northern waters, primarily serving as a record of the shoreline and bathymetric features like the Slime Bank which are critical to the region's historical fishing grounds.