Which preposition to use with flintstones

after Occurrences 1%

Delia: What ailed him to go own a jennet, he that has means to stable a bay horse would set the windows rattling on the public road, and it sparkling over the flintstones after dark? Staffy: Sure he owns no fourfooted beast only the dog abroad in its box.

Which preposition to use with  flintstones