Citation |
Luedke, R.G., and Smith, R.L., 1983, Map showing distribution, composition and age of late Cenozoic volcanic centers in Idaho, western Montana, west-central South Dakota and northwestern Wyoming: United States Geological Survey USGS Miscellaneous Geologic Investigation 1091-E, 1 sheet, scale 1:250,000.
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Geographic Area/Counties |
BEAVERHEAD, BROADWATER, CASCADE, CHOUTEAU, DEER LODGE, FLATHEAD, GALLATIN, GRANITE, HILL, JEFFERSON, JUDITH BASIN, LAKE, LEWIS AND CLARK, LIBERTY, LINCOLN, MADISON, MEAGHER, MINERAL, MISSOULA, PARK, PONDERA, POWELL, RAVALLI, SANDERS, SILVER BOW, STILLWATER, TETON, WHEATLAND
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