Explore the Scablands

Rowena Gap
At places like Oregon's Rowena Gap (seen here), the Columbia River Gorge served as a bottleneck that piled up waters from the floods to heights reaching 1,000 feet. The gorge's andesite bedrock, including the rugged cliffs found in this spot between the towns of The Dalles and Hood River, reveals scars of this almost unimaginable assault.