Hello, part of the quarry data is from the US Mine Safety & Health Administration's Mine Data Retrieval System, at https://www.msha.gov/data-and-reports/mine-data-retrieval-system
(Thus the ref:US:MSHA, you can look up addidional data on a specific quarry using the "search by mine ID")
Unfortunaly, none of this is georeferenced other than state/county and sometimes an address. The exact locations then have to be researched using the companies website or other means.
However, it is still a very good source (the website is unfortunaly very slow, but hey, it works).

It also includes thousands of abandoned quarries, many from the 90s, 80s, 70s and even earlier. They are usually still somewhere hidden in the woods, but the data is not not georeferenced, so very extensive research will be needed there.

Hope this helps you!