When the ice sheets collapsed at the end of the last glacial period, they didn't just melt quietly. The destruction was catastrophic, and the floodwaters carried evidence that still sits on the landscape today. Out in the Pacific Northwest, you can trace the path of these floods as they poured over the Canadian border and into what is now Washington State. Thousands of icebergs, some the size of tanker ships, were swept along in the deluge. Many of them carried massive boulders, plucked from bedrock hundreds of miles away. Some of these boulders weighed 10,000 tons. Some weighed 15,000 or 18,000 tons. They were deposited across the landscape in places where no river or glacier could have moved them under normal conditions. The scale of the forces required to transport these erratics is difficult to overstate, and it points to flood dynamics that dwarf anything in the modern hydrological record.
Join the Scablands, Geometry and Rift Valley Tour, October 4th to 10th, 2026. Walk the catastrophic flood landscapes of eastern Washington and explore the sacred geometry encoded by ancient civilizations. See the evidence firsthand. More info: https://contactatthecabin.com/scablands/