| Subject(s) |
COAL, COAL ASH, FLY ASH, BOTTOM ASH, MINE WASTE, REE, RARE EARTH ELEMENTS, CRITICAL MINERALS, MAGNETS, ND, NEODYMIUM, PHOSPHORITE, PHOSPHORIA, CARBONATITE, ALKALIC, PEGMATITE, SHEEP CREEK, SNOWBIRD
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| Geographic Area/Counties |
BEAVERHEAD, BIG HORN, BLAINE, BROADWATER, CARBON, CARTER, CASCADE, CHOUTEAU, CUSTER, DANIELS, DAWSON, DEER LODGE, FALLON, FERGUS, GALLATIN, GLACIER, GOLDEN VALLEY, GRANITE, HILL, JEFFERSON, JUDITH BASIN, LEWIS AND CLARK, LIBERTY, LINCOLN, MADISON, MCCONE, MEAGHER, MINERAL, MISSOULA, MUSSELSHELL, PARK, PETROLEUM, PONDERA, POWDER RIVER, POWELL, PRAIRIE, RAVALLI, RICHLAND, ROOSEVELT, ROSEBUD, SANDERS, SHERIDAN, SILVER BOW, STILLWATER, SWEET GRASS, TETON, TOOLE, TREASURE, VALLEY, WHEATLAND, WIBAUX, YELLOWSTONE
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