2020 Map of Cathlamet Bay

About this map

Cathlamet Bay dominates this coastal landscape, where the Columbia River disperses into a complex network of islands and channels. The town of Astoria sits at the western edge, overlooking the John Day Channel and Tongue Point. Inland, the terrain transitions into a grid of rural roads and small settlements like Fern Hill and Svensen. The waterway is defined by numerous named landmasses such as Grassy Island, Russian Island, and Miller Sands, which are separated by a maze of passages including the North and South Channel. Local history is preserved at the Svensen Pioneer Cemetery near Svensen Junction, while the southern reaches are drained by the Wallooskee River and its tributaries. The proximity of Karpens Airport and various island roads like Svensen Island Road illustrates the modern connectivity required to navigate this amphibious geography.