Quite a few places (around 13), albeit most are abandoned or inactive sites. You can locate most of these by spotting a tailings dam of some kind on Google Map

Quite a few places (around 13), albeit most are abandoned or inactive sites. You can locate most of these by spotting a tailings dam of some kind on Google Maps. There are three active mines, in California and Nevada owned by Molycorp Minerals, Rye Creek LLC, and Columbus SM LLC: CA: San Bernardino, Shasta, Rancho Cucamonga and Near Primm (35.478098,-115.532034) MT: Place called Rye Near Ravalli. Could not locate it manually, and the coordinates were listed incorrectly as 46.015278,-114.171389. Directions: "Turn east off of Highway 93 onto Tanner Ave. Follow it until it dead ends and turn right onto dirt road and follow it for approx 1/4 mile into mine site." NV: Esmeralda, Churchill, Pershing (38.119167,-117.993611) OR: Coos UT: Salt Lake (itself?) WA: Stevens, Grant