RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Top minerals

  • Gold: 3 sites
  • Scheelite: 3 sites
  • Arsenopyrite: 2 sites
  • Chalcopyrite: 2 sites
  • Galena: 2 sites
  • Pyrite: 2 sites
  • Sphalerite: 2 sites
  • Tetrahedrite: 2 sites

Mineral cards

  • Gold

    Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat

    6 sites

  • Silver

    Mohs 2.5–3. Native silver tarnishes black. Mindat

    4 sites

  • Copper

    Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat

    3 sites

  • Scheelite

    Mohs 4.5–5. Tungsten mineral that glows blue-white under shortwave UV. Mindat

    3 sites

  • Quartz

    Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat

    2 sites

  • Pyrite

    Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat

    2 sites

  • Galena

    Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat

    2 sites

Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.

Minerals most often recorded

Gold 3Scheelite 3Arsenopyrite 2Chalcopyrite 2Galena 2Pyrite 2Sphalerite 2Tetrahedrite 2Stibnite 2Molybdenite 1Nagyagite 1Jamesonite 1

Counties

CountySites
Livengood County (fewer than 5 sites, no page)2
Anchorage Municipality (fewer than 5 sites, no page)1
Bendeleben County (fewer than 5 sites, no page)1
De Long Mountains County (fewer than 5 sites, no page)1
Mount Hayes County (fewer than 5 sites, no page)1
Iditarod County (fewer than 5 sites, no page)1

Related articles

How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated