A phosphate mine that cannot be entered has done the next best thing: it trucks spoil to a public pit across the street from the museum, free, open, and restocked. You sit in the gravel with a screen and sort. It is the most reliable place in the Carolinas to put a child on their first shark tooth, and the museum next door will identify what you find. Free, no permit.
Shark teeth, whale bone · Miocene to Pliocene
See it on the map
Other places on the map within a couple of hours.