2011 Map of Bonneville Dam

About this map

The Columbia River dominates this landscape at the border of Washington and Oregon, serving as a corridor for major infrastructure including the Bonneville Dam and the Bridge of the Gods. This survey documents the complex geography of the Columbia River Gorge, where river islands like Bradford Island, Cascades Island, and Robins Island are integrated into the hydroelectric and navigation systems. On the Washington side, the town of Stevenson and the planned community of North Bonneville sit near the water's edge, while the terrain rises sharply toward Greenleaf Peak and Rock Creek Butte. The map provides significant detail for local historians, showing the location of Fort Rains and family-named sites such as Iman Cemetery. Transportation and industry are highlighted by the presence of the Cascade Salmon Hatchery, the Tooth Rock Tunnel, and the Cascade Locks-Stevenson State Airport, illustrating how the gorge has been adapted for power, transit, and conservation.