Cataclysmic Ice Age floods (such as those released from Glacial Lake Missoula) poured across Eastern Washington, sweeping many mammoths and other creatures to their deaths. Their carcasses, along with other floating debris, were carried downstream into temporary lakes and back waters. This painting by renowned Ice Age Floods artist Stev Ominski, with about the same perspective as Rick Fesser’s painting, illustrates what the shoreline of temporary Lake Lewis may have looked like if a modern geologist were to go back in time.