Uploaded July 2026 | Updated September 2026, 5 hours ago
Underneath Manson, Iowa, there's something funny about the rocks. Water wells drilled into the rock produce soft water, which is unusual for the area, and it contains lots of fluoride naturally. This video talks about how an ancient impact altered the rocks into the structures found below the town today. You can't see them at the surface, but water well drilling revealed this amazing structure which has made the town famous.
Underneath Manson, Iowa, there's something funny about the rocks. Water wells drilled into the rock produce soft water, which is unusual for the area, and it contains lots of fluoride naturally. This video talks about how an ancient impact altered the rocks into the structures found below the town today. You can't see them at the surface, but water well drilling revealed this amazing structure which has made the town famous.
