Treasure · 26-part prospecting and mining series

What can New Mexico's mining districts teach us?

Follow 26 sourced, longform chapters from small field questions to individual old mines, copper systems, and lesser-known silver, gold, turquoise, manganese, and fluorite districts of southwest New Mexico.

Start with a place and its evidence

The first eleven field stories examine a specific prospecting question in each district. Later histories go deeper into the mines and communities: Pinos Altos, Santa Rita–Chino, Tyrone copper, Azure turquoise and Randy Salars's family account, Cobre–Continental, Malone, Lone Mountain, Treasure Mountain, Bear Mountain, Hillsboro, and Kingston. Hillsboro and Kingston are in Sierra County; the other named chapters in this paragraph are in Grant County. New mine profiles include the Pacific and Cleveland mines at Pinos Altos.

The interactive historic mines layer plots broad district vicinities for named workings, with dates, minerals, reported production, sources, and links to their profiles. The Mining in Grant County history follows the geology, camps, operations, workers, maps, and surviving landscape behind these individual sites. The companion Grant County Adventure Guide connects several of these mining landscapes to town and river journeys. Historic production and mine names explain the past; they do not establish current collecting rights.

26 complete chapters

Read the series

  1. Bear Creek and Pinos Altos: What a First Pan Can Really Tell You

    A grounded look at small-scale gold prospecting in New Mexico's Pinos Altos district, from the documented Bear Creek placer to one test pan, its limits, and the land beneath it.

  2. Hillsboro Gold: The Geologic Lead and the Claim You Cannot See

    The Hillsboro district's real placer and lode history shows how a gold-bearing drainage, a geologic map, and present mining-claim records answer different prospecting questions.

  3. Old Placers, Three Small Methods: Pan, Dry Sample, or Detector?

    The Ortiz Mountains' documented placer history makes a practical comparison possible: what a pan, a dry sediment sample, and a detector can each reveal about gold-bearing ground.

  4. Mogollon's Gold Mines and the Empty Pan

    New Mexico's Mogollon district produced substantial lode gold without a documented placer yield. Its history shows how a negative prospecting result can correct a bad geological assumption.

  5. Jicarilla Gold: The Cost of Water, Clay, and a Small Disturbance

    The Jicarilla Mountains have documented placer gold, fine grains, sticky clay, and scarce water. Their geology makes responsible small prospecting a question of method and impact.

  6. Hopewell's Gold: When Is a Small Site Worth Another Visit?

    Hopewell's Placer Creek history offers a final prospecting decision: when repeated small observations justify more research, and when access, grade, and uncertainty say stop.

  7. Gold Gulch in the Burro Mountains: What the Old Placers Really Show

    Gold Gulch and Thompson Canyon were worked before 1884 and again with heavy equipment in the 1930s. Follow the documented gravel, uncertain source, and modern limits of a small prospecting test.

  8. Black Hawk and Alhambra: The Burro Mountains' Stranger Silver Story

    The 1881 silver discovery near Bullard Peak led to Black Hawk and Alhambra mines with rare nickel-cobalt-silver veins. A sourced journey through the boom, the mineralogy, and what the district does and does not promise prospectors today.

  9. Lake Valley, New Mexico: The Bridal Chamber and the Limits of a Silver Bonanza

    The astonishing Bridal Chamber made Lake Valley famous, but the district's layered silver, manganese, and mining history tells a more useful prospecting story than the legend alone.

  10. Chloride Flat: The Silver Ground That Helped Make Silver City

    John Bullard's 1870 silver discovery west of Silver City led to irregular chloride-ore bodies, small furnaces, and a district whose name still misleads modern prospectors.

  11. Boston Hill, New Mexico: From Silver Prospects to Manganese Pits

    Just southwest of Silver City, Boston Hill's historic silver hopes gave way to an industrial manganese-iron landscape now partly protected as town open space.

  12. Pinos Altos Gold and Silver: From Creek Gravel to Mountain Veins

    Follow Pinos Altos from the 1860 placer discovery through lode mining, silver and base metals, Bear Creek dredges, and the evidence the old workings leave today.

  13. Santa Rita and Chino: The Copper Mine That Remade a New Mexico Valley

    Trace copper at Santa Rita from Indigenous use and colonial extraction through the Chino open pit, the vanished town, changing ore methods, and the modern overlook.

  14. Tyrone Copper: How the Burro Mountains Became an Open-Pit District

    Explore the Tyrone copper system from early underground workings and Leopold to leaching, the modern pit, reclamation, and its relationship to the old turquoise mines.

  15. Tyrone Turquoise and the Azure Mine: The Elizabeth Pocket and a Salars Family Lease

    From the celebrated Elizabeth pocket to a month-long 1970s family lease approved by a Phelps Dodge mine manager, follow the history of Tyrone turquoise at Azure.

  16. Cobre and Continental: Copper in the Fierro–Hanover District

    Understand the Continental copper skarn near Fierro, the wider Cobre mine complex, its relationship to Chino and Tyrone, and what current permits actually cover.

  17. Malone Mining District: Gold Veins Along a Burro Mountains Fault

    Follow John B. Malone's 1884 lode discovery, older placer work, the Malone fault, later small mines, and the evidence behind this overlooked Grant County district.

  18. Lone Mountain's Short Silver Rushes Near Silver City

    Why did a small hill group southeast of Silver City produce rich silver in 1871, revive in the 1920s, and then fall quiet? Follow the geology and the surviving records.

  19. Treasure Mountain and Fleming Camp: A Real Silver Story Behind the Name

    Treasure Mountain northwest of Silver City held the Fleming Camp silver workings. Follow the Old Man mine, irregular quartzite ore, and the limits of the treasure name.

  20. Bear Mountain and Fleming: Silver, Manganese, Fluorite, and Iron

    Read the Bear Mountain side of Grant County's Fleming district, where a silver camp shared the map with limestone-hosted manganese, fluorite, and iron occurrences.

  21. Hillsboro Gold: Placers, Veins, and a Sierra County Mining Town

    Trace Hillsboro's 1877 gold discovery through its placers, vein mines, mills, and town, while keeping it distinct from nearby Kingston silver and Grant County mines.

  22. Kingston Silver: A Black Range Boom Built on Pockets and Faults

    Follow Kingston's 1880 silver discovery, the Lady Franklin and neighboring mines, the 1893 collapse, later base metals, and the geology that made the boom fragile.

  23. The Pacific and Cleveland Mines: Two Lives of Pinos Altos Ore

    Thomas and Virgil Marston's Pacific gold lode and the Cleveland zinc-lead mine show how Pinos Altos changed from an 1860s gold camp to a twentieth-century base-metal district.

  24. Alhambra and Black Hawk: The Silver Mines That Hid in Dark Carbonate Veins

    The 1881 Alhambra silver float, Black Hawk's rich shoots, 1893 shutdown, and later nickel-cobalt-uranium investigations reveal an unusual Burro Mountains mining district.

  25. Little Fanney at Mogollon: The Vein, the Mill, and a Mountain Town

    The Little Fanney mine's silver-rich vein, $4.87 million reported output through 1919, deep workings, and mill show how remote Mogollon became a major gold-silver camp.

  26. Opportunity and Lady Franklin: Two Black Range Mines, Two Kinds of Boom

    An 1877 gold float below Hillsboro's Opportunity mine and the Lady Franklin silver workings at Kingston show how two nearby Sierra County camps rose and changed.

Before the next field trip

The Grant County Rockhounding Guide connects district minerals to specimens and current collecting rights. The Small-Time Mining Guide follows a deposit through land status, claim filing, sampling, permitted operations, and the current patent moratorium. The Metal Detecting Guide explains signals, mineralized ground, target masking, and permissions behind a lawful detector search. The Treasure Hunting Research Guide follows a legend through records and land status. The Archaeology Ethics and Discovery series explains why historic sites should be protected. Each field question here depends on current land status and the actual deposit rather than a district name alone.

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