International Sink Hole map. Just click and enlarge the map on your location. Like I did for N. Central Florida. The photo is not the map. Use the link to go to the actual map.
https://foundationprosfl.com/sinkholes-near-me-a-map/
Green circles on this photo of the map are sink holes in N. Central Florida. The RED circles are larger more dangerous sink holes.
Black Hole Sun won’t you come….and wash away the rain….
RISKY DANGEROUS DECOMPOSING DAMS
https://infrastructurereportcard.org/cat-item/dams-infrastructure/