A world map shows nitrate mining locations marked by orange circles with "N." Key areas include the U S, Mexico, Chile, and Spain. Major clusters are in the U S (western states), Mexico, and northern Chile's Atacama Desert.
Nitrate Mines | Regina | Houston | Philadelphia | Oklahoma City | San Antonio | Boulder | Wichita | Portland | Irvine | Minneapolis | Boise | Winnipeg | Spring Hill | Greeley | St. Louis | Detroit | West Palm Beach | Columbus | Augusta | McAllen | Topeka | Las Cruces | Bakersfield | Oceanside | Reno | Indianapolis | Stockton | Baton Rouge | Glendale | Salinas | Trenton | Aurora | Modesto | Nogales | Rock Island | Fresno | Covington | Class | Rank | Million Metric Tons | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2.3636363636363638 | 1 | 1 | 1 | ||||||||||||||||||||||||||||||||||||||
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