2011 Map of Nassa Point

About this map

Nassa Point serves as a central landmark in this 2011 survey of the Columbia River border between Washington and Oregon. The landscape is defined by a complex network of sloughs and islands, including Whites Island, Browns Island, and Wallace Island, which separate the main river channel from smaller waterways like Cathlamet Channel and Westport Slough. On the Washington side, the Elochoman River flows past the Beaver Creek State Fish Hatchery and through the Upper Elochoman Valley, while the Oregon shore is characterized by industrial and residential clusters near the Westport Post Office. This map highlights the region's reliance on river-based transport and resource management, evidenced by the numerous named sloughs such as Sturgeon Pen Slough and the navigational markers at Westport Turn and Range. Smaller settlements like Flandersville and Waterford line the northern bank, reflecting the area's distributed riverfront development.