Today in history 🗓
9 June 1972: With up to 15 inches of rain falling in ten hours in South Dakota’s Black Hills, the Canyon Lake Dam failed, resulting in the “Rapid City Flood” that killed 238 people.
Photo credit 📷: NOAA
ALT Aftermath of the flash flood of June 9-10, 1972, Rapid City. Photo credit: NOAA.