137 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| Alaska Peninsula-Aleutian Range PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Central Alaska PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Central Brooks Range Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Darby-Hogatza Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Eastern Alaska Range (Alexandria-Wrangellia Terrane) PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Eastern Brooks Range-Old Crow PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Eastern Brooks Range-Old Crow PorphMo-W | Alaska | Alaska | Climax-type | Porphyry molybdenum | molybdenum; silver |
| Glacier Bay | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Kasaan Peninsula (Prince of Wales Island) | Alaska | Alaska | IOA-IOCG | Iron oxide copper gold; Polymetallic sulfide S-R-V | copper; gold; iron; lead; molybdenum; silver |
| Kokrines-Hodzana REE | Alaska | Alaska | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; lead; molybdenum; silver; thorium; uranium; yttrium |
| Kokrines-Hodzana Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Kuskokwim Mountains PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Kuskokwim-White Mountains Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Lost River-Kougarok Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Northern Alaska Range Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Porcupine River Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Seward Peninsula IOCG | Alaska | Alaska | IOA-IOCG | Iron oxide copper gold; Polymetallic sulfide S-R-V | copper; gold; iron; lead; molybdenum; silver |
| Seward Peninsula-St. Lawrence Island PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Seward Peninsula-St. Lawrence Island PorphMo-W | Alaska | Alaska | Alkalic porphyry | Porphyry/skarn copper-gold | copper; gold; molybdenum |
| Southeast Alaska Coast Mountains PorphMo-W | Alaska | Alaska | Climax-type | Porphyry molybdenum | molybdenum; silver |
| Southern Prince of Wales Island PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Western Alaska Range PCD | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Yukon-Tanana Sn-W | Alaska | Alaska | Porphyry Sn (granite-related) | Greisen; Pegmatite LCT; Porphyry/skarn | molybdenum |
| Yukon-Tanana Upland Gold | Alaska | Alaska | Reduced intrusion-related | Gold; Skarn copper-molybdenum-tungsten | copper; gold; molybdenum; silver |
| Yukon-Tanana Upland Porphyry | Alaska | Alaska | Porphyry Cu-Mo-Au | Porphyry/skarn copper; Porphyry/skarn molybdenum | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Upper Ordovician Phosphate (Rawtheyan and Richmondian) | North Central | Alabama; Iowa; Illinois; Indiana; Kentucky; Michigan; Minnesota; Missouri; Ohio; Oklahoma; Tennessee; Wisconsin | Marine chemocline | Black shale; Iron-manganese; Phosphate | copper; gold; iron; molybdenum; petroleum; phosphate fertilizer; stone coal; uranium |
| Blue Hill tungsten | Northeast | Maine | Porphyry Cu-Mo-Au | Greisen | molybdenum |
| Bowers Mountain black shale | Northeast | Maine | Marine chemocline | Black shale | copper; gold; molybdenum; petroleum; stone coal; uranium |
| Catheart pluton | Northeast | Maine | Porphyry Cu-Mo-Au | Porphyry/skarn copper; Porphyry/skarn molybdenum | copper; gold; molybdenum; silver; uranium |
| Catherine Mountain Prospect | Northeast | Maine | Porphyry Cu-Mo-Au | Greisen | molybdenum |
| Cornwall Mines | Northeast | Pennsylvania | IOA-IOCG | Polymetallic sulfide S-R-V; Skarn iron | copper; gold; iron; lead; molybdenum; phosphorus; silver; sulfur |
| Cuttingsville stock | Northeast | Vermont | Alkalic porphyry | Porphyry/skarn copper-gold | copper; gold; molybdenum; silver |
| Devonian Marcellus black shale | Northeast | Kentucky; Maryland; New York; Ohio; Pennsylvania; Virginia; West Virginia | Marine chemocline | Black shale | copper; gold; molybdenum; petroleum; stone coal; uranium |
| Penobscot black shale | Northeast | Maine | Marine chemocline | Black shale | copper; gold; molybdenum; petroleum; stone coal; uranium |
| Washington County intrusive rocks | Northeast | Maine | Porphyry Cu-Mo-Au | Porphyry/skarn molybdenum | molybdenum |
| York County scheelite | Northeast | Maine; New Hampshire | Porphyry Sn (granite-related) | Porphyry/skarn | lead; molybdenum; silver |
| Big Ben | Northwest | Montana | Climax-type | Porphyry molybdenum | molybdenum |
| Big Iron | Northwest | Washington | Reduced intrusion-related | Skarn copper-molybdenum-tungsten | copper; gold; iron; molybdenum; silver |
| Chelan Butte | Northwest | Washington | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS; S-R-V tungsten | cadmium; copper; gold; lead; molybdenum; silver |
| CuMo-Little Falls mineral districts | Northwest | Idaho | Porphyry Cu-Mo-Au | Porphyry/skarn molybdenum | copper; molybdenum |
| Heath Formation— Cox Ranch Member | Northwest | Montana | Marine chemocline | Black shale | copper; molybdenum; petroleum; stone coal; uranium |
| Idaho Cobalt Belt | Northwest | Idaho | IOA-IOCG | Iron oxide copper gold; Polymetallic sulfide S-R-V | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Indian Creek Mining District | Northwest | Idaho | IOA-IOCG | Iron oxide copper gold; Polymetallic sulfide S-R-V | copper; gold; lead; molybdenum; selenium; silver; uranium |
| Marysville district | Northwest | Montana | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS; Porphyry/skarn molybdenum | cadmium; copper; gold; lead; molybdenum; silver |
| Mazama | Northwest | Washington | Porphyry Cu-Mo-Au | Porphyry/skarn copper; Porphyry/skarn molybdenum | copper; gold; molybdenum; silver; uranium |
| Mount Tolman | Northwest | Washington | Porphyry Cu-Mo-Au | Porphyry/skarn copper; S-R-V tungsten | copper; gold; molybdenum; silver; uranium |
| Orogrande Mining District | Northwest | Idaho | Reduced intrusion-related | Skarn copper-molybdenum-tungsten | copper; gold; molybdenum; silver |
| Oroville-Nighthawk district (Four Metals) | Northwest | Washington | Porphyry Cu-Mo-Au | Porphyry/skarn copper; S-R-V tungsten; Skarn iron | copper; gold; iron; lead; molybdenum; silver; uranium |
| O'Toole Mountain | Northwest | Washington | Climax-type | Porphyry molybdenum; Skarn molybdenum | molybdenum |
| Red Mountain Washington | Northwest | Washington | Porphyry Cu-Mo-Au | S-R-V tungsten | copper; gold; molybdenum; silver |
| Sawtooth batholith | Northwest | Idaho | Climax-type | Pegmatite NYF | lead; molybdenum; silver; yttrium |
| Sawtooth Sn | Northwest | Idaho | Porphyry Cu-Mo-Au | Porphyry/skarn molybdenum | copper; gold; lead; molybdenum; silver |
| Sultan Basin | Northwest | Washington | Porphyry Cu-Mo-Au | Porphyry/skarn copper; Porphyry/skarn molybdenum | cadmium; copper; gold; molybdenum; silver; uranium |
| Sunset | Northwest | Washington | Metamorphic | Gneiss U; Graphite (coal or carbonaceous sed) | molybdenum; uranium |
| Tungsten King area | Northwest | Washington | Porphyry Cu-Mo-Au | S-R-V tungsten | molybdenum |
| White Cloud mineral district | Northwest | Idaho | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS; Porphyry/skarn molybdenum; S-R-V tungsten | cadmium; copper; gold; lead; molybdenum; silver |
| White River | Northwest | Washington | Porphyry Cu-Mo-Au | High sulfidation gold-silver; Lithocap alunite; Porphyry/skarn copper | copper; gold; molybdenum; silica; silver; uranium |
| Boulder Batholith | Northwest | Montana | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; gold; molybdenum; silver; uranium |
| Absaroka Volcanic Plateau | Northwest; Rocky Mountains | Montana; Wyoming | Porphyry Cu-Mo-Au | Porphyry/skarn copper; Porphyry/skarn molybdenum; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Aspen Mountain | Rocky Mountains | Wyoming | Porphyry Cu-Mo-Au | Greisen; High sulfidation gold-silver; Lithocap alunite; Lithocap kaolinite; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; mercury; molybdenum; silver |
| Bear Lodge District and Broader Region | Rocky Mountains | South Dakota; Wyoming | Alkalic porphyry | Low sulfidation; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper-gold | copper; gold; lead; molybdenum; silver |
| Boomer, Redskin Granite | Rocky Mountains | Colorado | Climax-type | Greisen S-R beryllium | copper; iron; lead; molybdenum |
| Central Laramie Range | Rocky Mountains | Wyoming | Porphyry Cu-Mo-Au | Greisen; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; molybdenum; silver |
| Climax-Sweet Home | Rocky Mountains | Colorado | Climax-type | Greisen; Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | copper; gold; lead; molybdenum; silver |
| Cretaceous-Paleocene coals, underclays, and interbeds | Rocky Mountains | Montana; North Dakota; South Dakota; Wyoming | Chemical weathering | Clay; Coal uranium, Regolith (Ion adsorption) REE; Surficial uranium | aggregate (coal clinker); clay; coal; molybdenum; uranium; yttrium |
| Crystal Mountain pegmatites | Rocky Mountains | Colorado | Climax-type | Greisen; Pegmatite NYF | feldspar; mica; molybdenum; uranium; yttrium |
| Hahns Peak | Rocky Mountains | Colorado | Climax-type | Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | copper; gold; lead; molybdenum; silver |
| Henderson-Urad | Rocky Mountains | Colorado | Climax-type | Lithocap kaolinite; Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | cadmium; copper; gold; lead; molybdenum; silver |
| Medicine Bow Mountains | Rocky Mountains | Colorado; Wyoming | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; molybdenum; silver |
| Mt. Emmons-Redwell Basin | Rocky Mountains | Colorado | Climax-type | Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | copper; gold; lead; molybdenum; silver |
| Phosphoria Formation | Rocky Mountains | Colorado; Idaho; Montana; Nevada; Utah; Wyoming | Marine chemocline | Black shale; Phosphate | copper; gold; molybdenum; petroleum; phosphate fertilizer; stone coal; uranium |
| Pikes Peak, St. Peter’s Dome (Proterozoic) | Rocky Mountains | Colorado | Climax-type | Greisen-S-R beryllium; Pegmatite NYF | gold; lead; molybdenum; silver; thorium; uranium; yttrium |
| Poison Basin | Rocky Mountains | Wyoming | Meteoric recharge | Sandstone uranium | molybdenum; pyrite; selenium; uranium |
| Silver Creek-Calico Peak | Rocky Mountains | Colorado | Climax-type | Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Summitville | Rocky Mountains | Colorado | Climax-type | Lithocap alunite; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; molybdenum; silver |
| Winfield Peak-Antero | Rocky Mountains | Colorado | Climax-type | Pegmatite NYF; Porphyry molybdenum | gold; molybdenum; silver; yttrium |
| Wyoming Metasedimentary and Metavolcanic Belts | Rocky Mountains | Wyoming | Porphyry Cu-Mo-Au | Greisen; Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; lead; molybdenum; PGE; silver; titanium |
| Pennsylvanian Phosphate, Black Shale, Underclay | South Central | Alabama; Arkansas; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Maryland; Michigan; Missouri; Nebraska; New York; Ohio; Oklahoma; Pennsylvania; Tennessee; Texas; Virginia; West Virginia | Marine chemocline | Black shale; Phosphate | copper; gold; molybdenum; petroleum; phosphate fertilizer; stone coal; uranium |
| Upper Devonian Phosphate | South Central | Alabama; Arkansas; Georgia; Illinois; Indiana; Iowa; Kentucky; Maryland; Michigan; Mississippi; Missouri; Ohio; Oklahoma; Pennsylvania; Tennessee; Virginia; West Virginia | Marine chemocline | Black shale; Iron-manganese; Phosphate | copper; gold; iron; molybdenum; petroleum; phosphate fertilizer; stone coal; uranium |
| Haile-Ridgeway; Brewer mining district | Southeast | Georgia; North Carolina; South Carolina | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; High sulfidation gold-silver | copper; gold; lead; molybdenum; silver |
| Bald Mountain mineral district | Southwest | Nevada | Reduced intrusion-related | Skarn copper-molybdenum-tungsten | copper; gold; molybdenum; silver |
| Black Range deposits (Lake Valley-Hermosa-Tierra Blanca-Macho-Kingston districts) | Southwest | New Mexico | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS | copper; gold; lead; molybdenum; silver |
| Buffalo Canyon | Southwest | Nevada | Reduced intrusion-related | Gold; Greisen-V tungsten | gold; molybdenum; silver |
| Butte Valley District | Southwest | Nevada | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; lead; molybdenum; silver; uranium |
| Castle Dome fluorite | Southwest | Arizona | Climax-type | Fluorspar; Polymetallic sulfide S-R-V-IS | barite; copper; lead; molybdenum; silver |
| Cave Peak | Southwest | Texas | Climax-type | Porphyry molybdenum | copper; molybdenum |
| Central Wasatch Mountains | Southwest | Utah | Porphyry Cu-Mo-Au | High sulfidation gold-silver; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Colorado Plateau sandstone uranium | Southwest | Arizona; Colorado; New Mexico; Utah | Meteoric recharge | Sandstone uranium | copper; molybdenum; uranium |
| Contact Mining District | Southwest | Nevada | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; lead; molybdenum; gold; silver; uranium |
| Cooks Range-Fluorite Ridge fluorite-manganese | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | molybdenum |
| Daisy Mine | Southwest | Nevada | Alkalic porphyry | Distal disseminated silver-gold; Fluorspar | copper; gold; mercury; molybdenum; silver; thallium |
| Diamond Tail (Hagan Basin) | Southwest | New Mexico | Meteoric recharge | Sandstone uranium | molybdenum; selenium; uranium |
| Drum Mountains | Southwest | Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; clay; copper; gold; halloysite clay; iron; molybdenum; silver; uranium |
| Ely (Robinson District) | Southwest | Nevada | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; lead; molybdenum; gold; silver; uranium |
| Fish Springs | Southwest | Utah | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS | cadmium; copper; gold; iron; lead; molybdenum; silver |
| Gibellini and Carlin Vanadium | Southwest | Nevada | Marine chemocline | Black shale | copper; gold; molybdenum; petroleum; stone coal; uranium |
| Gold Hill Mining District | Southwest | Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; S-R-V tungsten | copper; gold; lead; molybdenum; silver; uranium |
| Goodsprings mining district | Southwest | Nevada | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Granite Peak district | Southwest | Utah | Climax-type | Fluorspar; Greisen; Pegmatite NYF | lead; molybdenum; silver; yttrium |
| Grants Uranium District | Southwest | New Mexico | Meteoric recharge | Sandstone uranium | molybdenum; uranium |
| House Range tungsten skarns | Southwest | Utah | Porphyry Cu-Mo-Au | S-R-V tungsten | gold; molybdenum |
| Humboldt Mafic Complex | Southwest | Nevada | IOA-IOCG | Iron oxide apatite; Iron oxide copper gold; Polymetallic sulfide S-R-V | copper; iron; gold; lead; molybdenum; selenium; silver; uranium |
| Marysvale | Southwest | Utah | Climax-type | Fluorspar; Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry molybdenum; Volcanogenic uranium | copper; gold; lead; molybdenum; silver; uranium |
| McCullough Butte | Southwest | Nevada | Climax-type | Fluorspar; Greisen; Greisen-S-R beryllium | molybdenum |
| Middle Tertiary W skarns of southwestern New Mexico and southeastern Arizona | Southwest | Arizona; New Mexico | Porphyry Cu-Mo-Au | S-R-V tungsten | copper; gold; lead; molybdenum; silver |
| Mount Hope | Southwest | Nevada | Climax-type | Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | copper; gold; lead; molybdenum; silver |
| Mount Wheeler mine area | Southwest | Nevada | Climax-type | Greisen; Greisen-S-R beryllium; Polymetallic sulfide S-R-V-IS | copper; gold; lead; molybdenum; silver |
| New Mexico Cambrian alkaline rocks and REE veins | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; molybdenum; silver; thorium; uranium; yttrium |
| Nogal-Bonito (Cedar Creek) | Southwest | New Mexico | Alkalic porphyry | Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper-gold | copper; gold; lead; molybdenum; silver |
| Northwest Arizona and southwest Utah uranium breccia pipes | Southwest | Arizona; Utah | Basin brine path | Uranium (unconformity and breccia pipe) | copper; molybdenum; selenium; silver; uranium |
| Oquirrh Mountains | Southwest | Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | copper; gold; molybdenum; silver; uranium |
| Oreana mine area | Southwest | Nevada | Climax-type | Greisen; Greisen-S-R beryllium; Polymetallic sulfide S-R-V-IS | copper; gold; lead; molybdenum; silver |
| Orogrande Mining District | Southwest | New Mexico | Alkalic porphyry | Porphyry/skarn copper-gold; S-R-V tungsten | copper; gold; iron; lead; molybdenum; silver; uranium |
| Park City-Gold Hill belt | Southwest | Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Greisen; High sulfidation gold-silver; Lithocap kaolinite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; S-R-V tungsten | copper; gold; lead; molybdenum; silver; uranium |
| Park City-Gold Hill belt | Southwest | Utah | Climax-type | Fluorspar; Greisen; Polymetallic sulfide S-R-V-IS | copper; gold; lead; molybdenum; silver; uranium |
| Pine Grove-Blawn Mountain-Broken Ridge-Pink Knolls | Southwest | Utah | Climax-type | Lithocap alunite; Lithocap kaolinite; Polymetallic sulfide S-R-V-IS; Porphyry molybdenum | copper; gold; lead; molybdenum; silver; uranium |
| Questa-Log Cabin-Spring Gulch | Southwest | New Mexico | Climax-type | Lithocap alunite; Porphyry molybdenum | molybdenum |
| Red Basin-Riley | Southwest | New Mexico | Meteoric recharge | Sandstone uranium | molybdenum; selenium; uranium |
| Resolution | Southwest | Arizona | Porphyry Cu-Mo-Au | Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Sheeprock or Columbia-East Erickson | Southwest | Utah | Climax-type | Greisen; Greisen-S-R beryllium; Polymetallic sulfide S-R-V-IS | copper; gold; lead; molybdenum; silver; uranium |
| Southwest Laramide Porphyry Belt | Southwest | Arizona; New Mexico | Porphyry Cu-Mo-Au | Greisen; Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; Porphyry/skarn molybdenum | cadmium; copper; gold; lead; molybdenum; silver; sulfuric acid; uranium |
| Spor Mountain | Southwest | Utah | Climax-type | Fluorspar; Volcanogenic beryllium; Volcanogenic uranium | lead; molybdenum; silver; uranium |
| Sylvanite and Eureka Mining Districts | Southwest | New Mexico | Porphyry Cu-Mo-Au | S-R-V tungsten | copper; gold; lead; molybdenum; silver |
| Texas-New Mexico alkaline belt | Southwest | New Mexico; Texas | Climax-type | Porphyry molybdenum | molybdenum |
| Thompson Knolls | Southwest | Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Porphyry/skarn copper | copper; gold; molybdenum; silver; uranium |
| Tintic-Deep Creek belt | Southwest | Nevada; Utah | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; Greisen; High sulfidation gold-silver; Lithocap alunite, Lithocap kaolinite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; R-V manganese; S-R-V tungsten | cadmium; copper; gold; halloysite clay; iron; lead; molybdenum; silver; uranium; zeolite |
| Tintic-Deep Creek belt | Southwest | Nevada; Utah | Climax-type | Distal disseminated silver-gold; Fluorspar; Greisen; Greisen-S-R beryllium; Lithocap alunite, Lithocap kaolinite; Pegmatite NYF; Polymetallic sulfide S-R-V-IS; Volcanogenic beryllium; Volcanogenic uranium | cadmium; copper; gold; halloysite clay; iron; lead; molybdenum; silver; uranium; zeolite |
| Trinity Range-Kamma Mountains | Southwest | Nevada | Climax-type | Porphyry molybdenum | molybdenum |
| Trinity Range-Kamma Mountains | Southwest | Nevada | Porphyry Cu-Mo-Au | Porphyry/skarn copper | copper; gold; molybdenum; silver; uranium |
| Trout Creek district | Southwest | Utah | Climax-type | Greisen; Pegmatite NYF; Polymetallic sulfide S-R-V-IS | gold; lead; molybdenum; silver; yttrium |
| Tyrone-Chino-Hillsboro porphyry copper deposits | Southwest | New Mexico | Porphyry Cu-Mo-Au | Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| Uinta Basin | Southwest | Utah | Meteoric recharge | Sandstone uranium | copper; molybdenum; uranium |
| Victorio Mining District | Southwest | New Mexico | Climax-type | Polymetallic sulfide S-R-V-IS; Porphyry molybdenum; Skarn molybdenum | copper; gold; lead; molybdenum; silver |
| Western Great Basin Porphyry Copper | Southwest | California; Nevada | Porphyry Cu-Mo-Au | Distal disseminated silver-gold; High sulfidation gold-silver; Lithocap alunite; Polymetallic sulfide S-R-V-IS; Porphyry/skarn copper; Porphyry/skarn molybdenum; Skarn iron | cadmium; copper; gold; lead; molybdenum; silver; uranium |
| White Oaks Mining District | Southwest | New Mexico | Alkalic porphyry | Porphyry/skarn copper-gold; S-R-V tungsten | copper; gold; molybdenum |
| White Picacho | Southwest | Arizona | Porphyry Sn (granite-related) | Pegmatite LCT | copper; feldspar; gold; lead; mica; molybdenum; silver |
| Gorman tin district | Southwest | California | Porphyry Sn (granite-related) | Polymetallic sulfide S-R-V-IS | copper; gold; iron; lead; molybdenum; silver |