July 1, 2026
July 1, 2026
Two hundred and fifty years ago, a new nation declared its independence. It had iron in the ground, copper in its mountains, silver beneath its western ranges, and the ambition to dig for all of it. The history of mining in the United States is not a footnote to the American story — it is the American story, running from the first colonial ironworks to the rare earth deposits now being developed from Wyoming to West Texas.
As the country marks its 250th birthday, it's worth recognizing what has always run beneath the surface.
The hope of finding mineral treasure was one of the incentives that led the earliest colonists to America's shores. Iron ore was shipped to England from near Jamestown in 1608, just one year after Virginia's first permanent settlement. By 1620, 150 skilled workmen had been sent to the colony to erect and operate ironworks. These early efforts were modest and often frustrated — hostile conditions, thin deposits, and stiff competition from abroad made mining a precarious enterprise. But they planted the seed of an extractive economy that would eventually fuel one of history's great industrial transformations.
During the nation-building era from the mid-1800s to the early 1900s, access to large deposits of iron, copper, lead, and zinc was critical to industrial growth. The development of the first substantial domestic sources of metals in the 1850s was a turning point in the nation's history. The ready availability of iron and copper opened the door to rapid industrial expansion and provided exportable commodities that helped close a longstanding trade gap with Europe.
The story of American iron runs through the Great Lakes region. In the late 19th century, the American iron and steel industry rose to international prominence largely because of high-grade iron ores taken from the Upper Peninsula of Michigan. From there, the industry expanded into Minnesota, where the Mesabi Range — discovered in 1890 — became the backbone of American steelmaking, feeding the blast furnaces that produced structural steel for bridges, skyscrapers, and rail lines from coast to coast.
Copper told a parallel story. Native Americans had mined copper in hand-dug pits in the Keweenaw Peninsula in Michigan as far back as 7,000 years ago. That same region would prove pivotal centuries later — Michigan has produced over 14 billion pounds of copper since commercial mining began in 1844. When the telephone and electric light arrived in the 1870s and 1880s, the demand for copper to carry electrical current surged across the country. The wires that lit American cities and connected American homes ran straight from the mines of the Upper Peninsula.
Lead shaped the interior of the continent in quieter ways. While gold and silver drew prospectors with the allure of sudden wealth, lead's everyday utility made it vital for plumbing, manufacturing, and frontier commerce. Towns like Galena, Illinois — named after the lead sulfide mineral — became anchors of Midwestern commerce long before the railroads arrived.
The California Gold Rush of 1848 changed everything. By 1849, over 80,000 people had relocated to California in search of gold — a migration that didn't just produce wealth, but people, settlements, and statehood. Then, in 1859, the Comstock Lode in Nevada became the first major silver discovery in the United States, helping finance the Union cause during the Civil War and accelerating Nevada's admission to statehood in 1864. From Coeur d'Alene in Idaho to Tombstone in Arizona, boomtowns flowered across the American West, producing not only gold and silver, but zinc, copper, and lead — all essential to the industrial revolution taking shape in the East.
The building of a transcontinental railroad after the Civil War tied the continent together, consolidating scattered mining operations into the integrated industrial economy that would define the 20th century. Iron ore from Minnesota's Iron Range was shipped to Duluth via railroad, then loaded onto lake freighters bound for Detroit and Pittsburgh, where it was smelted for the automotive and construction industries. The demand for iron ore frequently mirrored the larger arc of American history — surging during wars, booms, and the great infrastructure buildouts that connected a growing nation. Minerals didn't just accompany American growth. They drove it.
The postwar era brought a different kind of mineral story — quieter than a gold rush, but no less consequential. As the American economy expanded after World War II, so did demand for the industrial minerals that underpin daily life.
Phosphate became central to the agricultural revolution that helped feed a growing global population. Demand for chemical fertilizer surged as American and global farming industrialized, and central Florida's processing plants grew into massive complexes producing phosphoric acid. Florida's Bone Valley district remains the largest source of phosphate in the United States, supplying a significant share of global demand for the nutrient that makes modern agriculture possible.
In the desert Southwest, potash — another essential fertilizer ingredient — found its American home in southeastern New Mexico. Commercial potash mining began in 1926 following the discovery of the first commercial potash deposits in the entire Western Hemisphere, ending the nation's dependence on imported potash and creating a new industry in the Carlsbad area. That industry endures today, with New Mexico's Carlsbad Potash District accounting for the majority of domestic potash production.
Underground in Wyoming, a different discovery was quietly reshaping American industry. The trona industry in Sweetwater County had its beginning in 1938 during oil and gas explorations, with the first mine shaft excavated in 1946. The Green River Basin turned out to hold the world's largest known deposit of trona — the mineral refined into soda ash, a compound essential to glassmaking, detergents, water treatment, and dozens of other products. Wyoming's trona deposits supply about 90 percent of the nation's soda ash and represent the state's top international export. From car windshields to the baking soda in American kitchens, Wyoming trona is hiding in plain sight.
Today, the American minerals story is entering a new chapter. Critical minerals — from lithium for EV batteries to gallium for semiconductors — are the raw materials without which modern economies cannot function, and the United States has them. Lithium deposits span Nevada, North Carolina, California, and Arkansas. Rare earth elements — the 17 metals essential to electric motors, wind turbines, advanced defense systems, and consumer electronics — have been identified by the USGS across Alaska, California, Colorado, Florida, Georgia, Idaho, Illinois, Missouri, Nebraska, New Mexico, New York, North Carolina, South Carolina, and Wyoming.
The breadth of that list is the point. Domestic rare earth production reached 45,000 metric tons of oxide equivalent in 2024, up from 41,600 metric tons in 2023 — and exploration and development activity is accelerating across the country. The same geology that gave America its iron, copper, silver, phosphate, potash, and trona is now yielding the minerals that will power electric vehicles, renewable energy systems, and next-generation defense technology.
Two hundred and fifty years in, the ground still has a lot to give.
Minerals Make It Happen — and they always have.
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