A world map shows platinum mining locations marked by gray circles with "P t." Some key areas include Canada, the U S, Mexico, Brazil, South Africa, Russia, Japan, and Australia. Major clusters are in Canada, South Africa, Brazil, and Australia.
Platinum Mines | Manganese Mines | Less than 1 | 1–5 | 6–10 | 11–15 | More than 15 | Extent of U.S., 1803 | Louisiana Purchase, 1803 | West Florida, 1810–1813 | British Cession, 1818 | East Florida, 1819 | Northern Maine, 1842 | Texas Annexation, 1845 | Oregon Country, 1846 | Mexican Cession, 1848 | Gadsden Purchase, 1853 | Alaska, 1867 | Hawaii, 1898 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Yukon | 2 | ||||||||||||||||||
Manitoba | 5 | ||||||||||||||||||
Ontario | 30 | 1 | |||||||||||||||||
Alaska | 3 | 99.8% | 94.5% | ||||||||||||||||
Arizona | 48 | 92.2% | 7.76% | 76.2% | 23.8% | ||||||||||||||
Utah | 15 | 100% | 100% | ||||||||||||||||
District of Columbia | 100% | 97.6% | |||||||||||||||||
Florida | 64.2% | 35.5% | 98.3% | ||||||||||||||||
Idaho | 100% | 99.8% | |||||||||||||||||
New Hampshire | 1.24% | 98.7% | 99.9% | ||||||||||||||||
Rhode Island | 99.3% | 97.7% | |||||||||||||||||
Vermont | 77.1% | 22.6% | 99.9% | ||||||||||||||||
Washington | 1 | 99.9% | 99.4% | ||||||||||||||||
Wyoming | 1 | 87.7% | 12.3% | 70.3% | 4.53% | 12.4% | 12.7% | ||||||||||||
Montana | 3 | 24 | 100% | 82.4% | 17.6% | ||||||||||||||
Maine | 40.0% | 59.8% | 82.4% | 16.6% | |||||||||||||||
North Dakota | 29.5% | 70.5% | 57.6% | 42.4% | |||||||||||||||
Kentucky | 4.42% | 60.5% | 35.1% | 99.9% | |||||||||||||||
Virginia | 10.3% | 89.6% | 99.5% | ||||||||||||||||
Delaware | 99.2% | 98.0% | |||||||||||||||||
Mississippi | 10.9% | 74.0% | 15.1% | 92.2% | 7.44% | ||||||||||||||
West Virginia | 2 | 48.2% | 51.8% | 100% | |||||||||||||||
Nebraska | 88.6% | 11.4% | 100% | ||||||||||||||||
Texas | 16.8% | 43.9% | 36.9% | 2.38% | 99.5% | ||||||||||||||
Missouri | 23.4% | 62.5% | 14.1% | 99.7% | |||||||||||||||
Louisiana | 1 | 30.4% | 69.5% | 86.4% | 12.4% | ||||||||||||||
Hawaii | 92.1% | 91.5% | |||||||||||||||||
North Carolina | 99.9% | 99.2% | |||||||||||||||||
Oregon | 1 | 7 | 100% | 99.8% | |||||||||||||||
Alabama | 69.5% | 16.4% | 14.0% | 95.7% | 4.16% | ||||||||||||||
New Mexico | 3 | 90.2% | 9.71% | 57.5% | 40.3% | 2.23% | |||||||||||||
Kansas | 68.1% | 31.5% | 91.7% | 8.26% | |||||||||||||||
Wisconsin | 13.1% | 53.1% | 33.7% | 99.8% | |||||||||||||||
British Columbia | 2 | 2.52% | 1.43% | ||||||||||||||||
New Jersey | 19.5% | 80.3% | 99.0% | ||||||||||||||||
South Carolina | 1 | 99.9% | 99.6% | ||||||||||||||||
Michigan | 34.8% | 64.8% | 99.9% | ||||||||||||||||
Connecticut | 99.9% | 99.6% | |||||||||||||||||
Pennsylvania | 1 | 6.15% | 93.9% | 100% | |||||||||||||||
Colorado | 15 | 69.4% | 30.6% | 41.3% | 32.3% | 26.4% | |||||||||||||
Nevada | 2 | 100% | 99.9% | ||||||||||||||||
Massachusetts | 2 | 99.5% | 98.1% | ||||||||||||||||
Georgia | 3 | 61.5% | 38.5% | 99.8% | |||||||||||||||
New York | 2 | 61.6% | 38.3% | 99.4% | |||||||||||||||
Maryland | 99.3% | 96.9% | |||||||||||||||||
Oklahoma | 3.41% | 35.1% | 46.0% | 15.5% | 91.6% | 8.45% | |||||||||||||
Tennessee | 1 | 41.3% | 58.7% | 99.9% | |||||||||||||||
California | 202 | 99.9% | 99.7% | ||||||||||||||||
Arkansas | 3 | 87.2% | 12.8% | 99.8% | |||||||||||||||
South Dakota | 22.1% | 76.0% | 1.85% | 99.1% | |||||||||||||||
Ohio | 3.97% | 96.0% | 100% | ||||||||||||||||
Indiana | 62.9% | 37.1% | 100% | ||||||||||||||||
Minnesota | 23.4% | 72.5% | 4.03% | 33.8% | 45.1% | 20.9% | |||||||||||||
Iowa | 50.0% | 50.0% | 99.8% | ||||||||||||||||
Illinois | 70.3% | 29.6% | 99.7% | ||||||||||||||||
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