2023 Map of Bonneville Dam

About this map

Stevenson, Washington, and Cascade Locks, Oregon, anchor this detailed survey of the Columbia River's most significant narrows. The landscape is defined by the massive infrastructure of the Bonneville Lock and a series of river islands including Bradford Island, Hamilton Island, and Thunder Island. This 2023 edition highlights a complex network of public lands, including the Gifford Pinchot National Forest to the north and the Mount Hood National Forest to the south. Historically-minded researchers will find several localized burial sites such as the Masterson Grave and Iman Cem, alongside the location of Fort Rains near the riverbank. Modern transportation and recreation are well-represented, from the Key Way Airport to the winding path of the Pacific Crest National Scenic Trl crossing through the Columbia Gorge.