Heppner flood of 1903 was a major flash flood along Willow Creek responsible for destroying a large portion of Heppner , Oregon , United States , on June 14 , 1903 . With a death toll of 247 people , it remains the deadliest natural disaster in Oregon , and the second deadliest flash flood in the entire United States , behind the 1889 Johnstown Flood and ahead of the 1972 Black Hills Flood . The flood caused over $ 600,000 in damage , equivalent to $ today
Johnstown Flood
Johnstown Flood
Heppner flood of 1903