Rockhounding in Pinal County, AZ: 767 USGS Mineral Sites (2026)

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.

Sketch map

Past ProducerProducerProspectOccurrenceStatus unknown

173 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. 14 site(s) with USGS coordinates outside the outline are not pinned. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Woof’s favorite find

Mammoth - St. Anthony Mine

We picked it because its USGS record mentions 5 gem or collectible minerals (Tourmaline, Quartz, Gold, Fluorite, Silver) and 8 of our card minerals overall. That ties with 1 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as past producer for Gold, Lead, Zinc, Vanadium. Minerals mentioned: Tourmaline, Quartz, Gold, Pyrite, Galena, Fluorite, Copper, Silver. Approx. location 32.706, -110.685. USGS record.

Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.

Field cards: what kind of sites?

269

Past Producer

Produced ore or material at some point in the past.

195

Prospect

Explored or test-dug, with no recorded production.

184

Occurrence

The mineral was noted here, without development.

106

Producer

Was producing when the record was made.

Unknown

Status not recorded.

Plant

A processing plant site.

Status terms come from USGS MRDS records.

Mineral cards

Copper
Mohs 2.5–3. Native copper is soft and turns green as it weathers. Mindat
510 sites
Silver
Mohs 2.5–3. Native silver tarnishes black. Mindat
331 sites
Gold
Mohs 2.5–3. Soft, heavy and bright yellow; it doesn’t tarnish. Mindat
322 sites
Pyrite
Mohs 6–6.5. Brassy “fool’s gold,” often cubic. Mindat
112 sites
Quartz
Mohs 7. Six-sided points; smoky quartz is NH’s state gem. Mindat
110 sites
Galena
Mohs 2.5–2.75. Heavy, silvery lead ore that breaks into cubes. Mindat
61 sites
Scheelite
Mohs 4.5–5. Tungsten mineral that glows blue-white under shortwave UV. Mindat
17 sites
Mica
Mohs 2–3. Peels into thin, flexible, shiny sheets. Mindat
16 sites

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

Minerals recorded here

Chrysocolla 101Malachite 93Chalcopyrite 83Galena 56Chalcocite 42Gold 30Pyrite 30Sphalerite 27Silver 27Wulfenite 23Bornite 22Molybdenite 19

Commodities

Copper 481Silver 312Gold 302Lead 209Zinc 69Manganese 69Molybdenum 65Tungsten 42Iron 40Silica 34

Sites (first 40)

Site	Commodity	Minerals recorded	Status	Approx. location
Picacho Reservoir Analcime	Zeolites	Analcime	Occurrence	32.785, -111.472
Silver King Mine	Silver, Lead	Anglesite, Argentite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Copper, Covellite, Cuprite, Galena, Gold, Malachite, Pyrite, Siderite, Silver, Sphalerite, Tetrahedrite	Past Producer	33.330, -111.088
Ajax Mine	Lead	Anglesite, Argentite, Bornite, Cerargyrite, Galena, Sphalerite	Producer	33.208, -111.183
Saddle Mountain Group	Gold, Silver	Anglesite, Argentite, Bornite, Chalcopyrite, Chrysocolla, Covellite, Galena, Gold, Malachite, Pyrargyrite, Pyrite, Silver, Sphalerite	Past Producer	33.035, -110.686
Pico Mine	Silver	Anglesite, Argentite, Cerargyrite, Embolite, Galena, Wulfenite	Past Producer	32.624, -111.915
Gorman-Hall Mine	Silver, Lead	Anglesite, Argentite, Cerargyrite, Galena, Sphalerite	Producer	33.214, -111.197
Woodpecker Mine	Silver, Lead	Anglesite, Argentite, Cerargyrite, Galena, Sphalerite	Producer	33.214, -111.197
Orphan Boy Mine	Lead	Anglesite, Argentite, Galena, Sphalerite	Producer	33.208, -111.161
Bluebird Mine	Lead, Copper	Anglesite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Descloizite, Galena, Malachite, Pyrite, Silver, Sphalerite, Stromeyerite, Tennantite, Tetrahedrite, Wolframite, Wulfenite	Past Producer	32.763, -110.471
Blue Bird Mine	Lead, Silver	Anglesite, Bornite, Cerargyrite, Chalcocite, Chalcopyrite, Covellite, Galena, Malachite, Psilomelane, Pyrite, Silver, Stromeyerite, Tennantite, Tetrahedrite, Wulfenite	Past Producer	32.763, -110.472
Mohawk-New Year Mine	Lead, Copper	Anglesite, Brochantite, Calamine, Chalcocite, Chalcopyrite, Cuprodescloizite, Galena, Gold, Malachite, Pyrite, Pyrolusite, Silver, Sphalerite, Vanadinite, Wulfenite	Producer	32.704, -110.682
Mammoth - St. Anthony Mine	Gold, Lead, Zinc, Vanadium	Anglesite, Brochantite, Chalcopyrite, Chrysocolla, Covellite, Descloizite, Diaboleite, Dioptase, Galena, Gold, Hemimorphite, Linarite, Malachite, Mottramite, Silver, Smithsonite, Sphalerite, Vanadinite, Willemite, Wulfenite	Past Producer	32.706, -110.685
Silver Bell-Martinez Mine	Silver, Lead	Anglesite, Cerargyrite, Chrysocolla, Embolite, Galena, Hematite, Limonite, Pyromorphite	Past Producer	33.176, -111.158
Orizaba Mine	Silver, Lead	Anglesite, Chrysocolla, Galena, Limonite, Sphalerite, Vanadinite, Wulfenite	Past Producer	32.620, -111.912
Wedge Mine	Lead, Zinc	Anglesite, Galena	Producer	33.165, -111.238
Sacaton	Molybdenum, Copper	Antlerite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Malachite, Molybdenite, Pyrite, Gold	Past Producer	32.955, -111.817
Belmont Mine	Copper	Argentite, Cerargyrite, Chalcopyrite, Galena, Gold, Silver, Sphalerite, Vanadinite, Wulfenite	Producer	33.273, -111.076
Reymert Mine	Silver, Silica	Argentite, Cerargyrite, Psilomelane, Pyrolusite, Wad	Producer	33.245, -111.202
Old Eagle Mine	Silver, Gold, Lead	Argentite, Cerussite, Galena	Past Producer	32.592, -111.079
Bunker Hill Mine	Lead, Copper	Argentite, Chalcocite, Chalcopyrite, Galena, Tetrahedrite	Producer	32.737, -110.479
Cactustail Mine	Copper, Silver	Argentite, Chalcocite, Linarite, Malachite, Tenorite	Past Producer	32.583, -111.102
Jesse Benton Mine	Silver	Argentite, Chalcopyrite, Galena, Malachite, Sphalerite	Past Producer	32.599, -111.057
Little Treasure Mine	Silver	Argentite, Chalcopyrite, Galena, Pyrargyrite, Sphalerite	Past Producer	33.035, -110.676
Silver Reef Mine	Silver	Argentite, Chrysocolla, Galena, Silver, Wulfenite	Past Producer	32.668, -111.818
Old Reliable Mine	Copper	Atacamite, Bornite, Chalcanthite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Malachite, Molybdenite, Olivenite, Tetrahedrite	Past Producer	32.752, -110.490
Santa Cruz	Copper	Atacamite, Chalcocite, Chalcopyrite, Chrysocolla, Molybdenite, Pyrite	Past Producer	32.900, -111.882
Habstritts Silver Lode Claim A	Manganese, Silver	Barite	Occurrence	33.221, -111.210
Big Mine	Barium-Barite, Copper	Barite, Chrysocolla, Galena, Malachite	Occurrence	32.625, -111.069
Sundown Mine	Copper, Barium-Barite	Barite, Chrysocolla, Malachite, Tenorite	Occurrence	32.592, -111.206
Gonzales Pass Deposit	Barium-Barite	Barite, Fluorite	Occurrence	33.278, -111.225
Ray Mine	Copper	Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Copper, Covellite, Cuprite, Galena, Malachite, Molybdenite, Pyrite, Silver, Sphalerite	Producer	33.183, -110.992
Tohono	Copper Oxide, Copper Sulfide	Bornite, Brochantite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Cuprite, Diopside, Galena, Garnet, Goethite, Molybdenite, Pyrite, Sphalerite, Tenorite, Tremolite	Producer	32.517, -111.901
Vekol Hills	Copper	Bornite, Chalcocite, Chalcopyrite, Chrysocolla, Gold, Malachite, Molybdenite, Pyrite, Silver, Sphalerite, Anglesite, Argentite, Copper, Galena, Smithsonite, Tetrahedrite	Past Producer	32.589, -112.055
Childs-Aldwinkle Mine	Molybdenum, Copper	Bornite, Chalcocite, Chalcopyrite, Copper, Covellite, Cuprite, Enargite, Ferrimolybdite, Galena, Gold, Malachite, Molybdenite, Silver, Sphalerite, Tennantite, Wulfenite, Atacamite, Chalcanthite, Chrysocolla, Olivenite, Tetrahedrite	Past Producer	32.753, -110.482
Rattler Mine	Copper	Bornite, Chalcocite, Chalcopyrite, Gold, Malachite, Silver	Producer	33.142, -110.886
Adjust Mine	Lead, Silver	Bornite, Chalcopyrite, Galena, Gold, Pyrite, Sphalerite	Producer	33.036, -110.692
American Eagle Mine	Copper	Bornite, Chalcopyrite, Galena, Molybdenite, Pyrite, Sphalerite	Past Producer	32.750, -110.496
Antelope Mine	Copper	Bornite, Chalcopyrite, Malachite, Melaconite	Producer	32.893, -110.843
Troy Ranch Prospect	Copper, Molybdenum	Bornite, Chalcopyrite, Molybdenite	Occurrence	33.148, -110.885
Rainbow Group	Tungsten	Bornite, Chalcopyrite, Molybdenite, Scheelite, Wolframite	Past Producer	33.360, -110.990

Fossil collections

The Paleobiology Database lists 3 fossil collection records in Pinal County. These are research records, not public dig sites.

Nearby counties

Graham County · Gila County · Pima County · Cochise County · Santa Cruz County

Arizona mineral guides

Back to all Arizona counties.

Is It Legal to Collect Rocks on Public Land? BLM, Forest Service and National Park Rules

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 October 2026

Rockhounding in Pinal County, Arizona

Sketch map

Mammoth - St. Anthony Mine

Field cards: what kind of sites?

Mineral cards

Copper

Silver

Gold

Pyrite

Quartz

Galena

Scheelite

Mica