Stone lithography

I am looking into the commercial uses of various kinds of stone, in connection with helping to revise a book about all of the rock formations in the state of Alabama. I know that, once upon a time, printing was done by means of stone lithography, and it must have been big business, because newspapers were printed that way. So there must have been stone lithography, probably in the 19th century, in Alabama. Where did the stone come from? There is near lithographic quality limestone in the Tuscumbia Limestone, according to a paper I have seen. An art professor and I took a look at some Bangor limestone, because he was interested in making some lithographic art prints from it, but that investigation never went anywhere. The stone that we saw contained scattered small fossils which were too large and would have rendered the limestone unusable for lithography. So, if anyone knows where lithographic limestone was mined/quarried for the purpose of printing newspapers or anything else, in Alabama, please let me know.

Update: I have been told that at least some of the stone probably came from Kentucky. Slim pickings, information lies, but it is something.