I saw your title and my first thought was "Why are there landmines in the US?" lol.

I love the idea of a site like this existing but the expanding dots is a really bad way to visualize this.

This doesn't seem to be complete. It's missing the Waste Isolation Pilot Plant, for example, which should be southeast of Carlsbad, NM. It's a underground salt (metal/non-metal) mine, and MSHA definitely regulates it

I'm glad it's those kinds of mines rather than the ones I first thought of.

This seems to include cement works and other processing plants that have somewhat mine-like output but aren't actually extracting anything from the ground at that site.

Downloaded from https://www.msha.gov/data-and-reports/mine-data-retrieval-sy.... Pipe-delimited, updated weekly by MSHA.

How many of these pose asbestos hazards like the Libby mine?