92 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| Big Delta-Circle-Livengood | Alaska | Alaska | Basin brine path | Zinc-lead (MVT and sedex) | copper; lead; silver |
| Black River-Charley River-Eagle | Alaska | Alaska | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Brooks Range-Northern Foreland Sed Cu | Alaska | Alaska | Basin brine path | Barite (replacement and bedded); Copper (sed-hosted and replacement) | copper; lead; silver; uranium |
| Central Alaska Range | Alaska | Alaska | Basin brine path | Barite; Zinc-lead (MVT and sedex) | copper; lead; silver |
| Eastern Alaska Range | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Farewell Terrane | Alaska | Alaska | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Johnson River | Alaska | Alaska | Volcanogenic seafloor | Polymetallic sulfide | copper; gold; lead; silver |
| Kuskokwim-White Mountains REE | Alaska | Alaska | Magmatic REE | Carbonatite | copper; gold; iron; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Nome belt | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Northern Brooks Range | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Prince William Sound | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Seward Peninsula | Alaska | Alaska | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Southeast Alaska VMS | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Southern Brooks Range-Ambler | Alaska | Alaska | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide; Zinc-copper sulfide | copper; gold; lead; silver |
| Western and central Brooks Range (Brooks Range zinc belt) | Alaska | Alaska | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Elk Creek carbonatite | North Central | Nebraska | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; vermiculite; uranium; yttrium |
| Elk Creek region | North Central | Kansas; Nebraska | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; vermiculite; uranium; yttrium |
| Pembine-Wausau and Minnesota Paleoproterozoic | North Central | Michigan; Minnesota; Wisconsin | Volcanogenic seafloor | Barite; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide; Zinc-copper sulfide | copper; gold; iron; lead; silver |
| Upper Mississippi Valley mineral district | North Central | Illinois; Iowa; Wisconsin | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | cadmium; copper; iron; lead; silver |
| Berks County Pennsylvania barite | Northeast | Pennsylvania | Basin brine path | Barite (replacement and bedded) | (none) |
| Catoctin Formation metavolcanics in Maryland | Northeast | Maryland | Volcanogenic seafloor | Barite; Copper-zinc sulfide; Polymetallic sulfide | copper; gold; lead; silver |
| Cheshire County-Westmoreland district | Northeast | New Hampshire | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; silver; lead |
| Hartford-Deerfield Mesozoic Basin | Northeast | Connecticut; Massachusetts | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Taconic allochthons | Northeast | New York; Massachusetts; Vermont | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Bearpaw Mountains-Eagle Buttes | Northwest | Montana | Magmatic REE | Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; lead; magnetite; phosphorus; silver; thorium; uranium; vermiculite; yttrium |
| Central Idaho barite | Northwest | Idaho | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Cuddy Mountain barite | Northwest | Idaho | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Grass Range | Northwest | Montana | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Johnson Ranch-Gold Butte-Froze to Death Butte | Northwest | Montana | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Judith Mountains | Northwest | Montana | Magmatic REE | Carbonatite | copper; gold; magnetite; phosphorus; silver; thorium; uranium; vermiculite; yttrium |
| Kenelty mine | Northwest | Montana | Basin brine path | Barite (replacement and bedded) | gold; silver |
| Klamath Mountains barite | Northwest | California | Basin brine path | Barite (replacement and bedded) | (none) |
| Missoula barite (Elk Creek-Coloma District) | Northwest | Montana | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; gold; lead; silver |
| Missouri Breaks diatremes | Northwest | Montana | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| North central California massive sulfide | Northwest | California | Volcanogenic seafloor | Barite; Copper-zinc sulfide | copper; gold; silver |
| North Stevens County barite | Northwest | Washington | Basin brine path | Barite (replacement and bedded) | (none) |
| Sheep Creek-Mineral Hill | Northwest | Idaho; Montana | Magmatic REE | Carbonatite; Hybrid Th-REE-Fe veins and replacements | copper; iron; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Sierra Nevada Foothills barite | Northwest | California | Basin brine path | Barite (replacement and bedded) | (none) |
| Smoky Butte | Northwest | Montana | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Snowbird-Dry Creek | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| South Stevens County barite | Northwest | Washington | Basin brine path | Barite (replacement and bedded) | (none) |
| Sweet Grass Hills | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Bear Lodge District and Broader Region | Rocky Mountains | South Dakota; Wyoming | Magmatic REE | Carbonatite | gold; thorium; uranium |
| Central Laramie Range | Rocky Mountains | Wyoming | Volcanogenic seafloor | Barite; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide | copper; gold; iron; lead; silver |
| Medicine Bow Mountains | Rocky Mountains | Colorado; Wyoming | Volcanogenic seafloor | Barite; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide | copper; gold; iron; lead; silver |
| Powderhorn District | Rocky Mountains | Colorado | Magmatic REE | Carbonatite; Fluorspar | copper; iron; lead; phosphorus; silver; thorium; vermiculite; uranium; yttrium |
| Rattlesnake Hills Alkali Intrusive Complex | Rocky Mountains | Wyoming | Magmatic REE | Carbonatite | copper; lead; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Sierra Madre | Rocky Mountains | Colorado; Wyoming | Volcanogenic seafloor | Barite; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide | copper; gold; lead; silver |
| Wet Mountains | Rocky Mountains | Colorado | Magmatic REE | Carbonatite; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; phosphorus; thorium; vermiculite; uranium; yttrium |
| Wyoming Metasedimentary and Metavolcanic Belts | Rocky Mountains | Wyoming | Volcanogenic seafloor | Barite; Manganese oxide (layers, crusts, nodules); Polymetallic sulfide | copper; gold; iron; silver |
| Central Kentucky Mineral District | South Central | Kentucky | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | cadmium; calcite; copper; lead; silver |
| Central Missouri Barite-Lead District | South Central | Missouri | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Fall Branch-Greeneville District | South Central | Tennessee | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper |
| Hicks Dome Intrusion | South Central | Illinois | Hybrid magmatic REE / basin brine path | Fluorspar | lead |
| Illinois-Kentucky Fluorspar District | South Central | Illinois; Kentucky | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | cadmium; copper; lead; silver |
| Illinois-Kentucky Fluorspar District | South Central | Illinois; Kentucky | Hybrid magmatic REE / basin brine path | Fluorspar | lead |
| Magnet Cove District- Potash Sulphur Springs | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Midwest Permian Ultramafic Dike District | South Central | Illinois; Indiana; Kentucky | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Ouachita barite deposits | South Central | Arkansas | Basin brine path | Barite (replacement and bedded) | (none) |
| Rison anomaly | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| South Central Kentucky and North Central Tennessee Mineral District | South Central | Kentucky; Tennessee | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | cadmium; copper; lead; silver |
| Sweetwater Barite District | South Central | Tennessee | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | cadmium; copper; lead; silver |
| Washington County Barite District | South Central | Missouri | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Del Rio/Hot Springs Barite Mining Districts | Southeast; South Central | North Carolina; Tennessee | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; lead; silver |
| Barite Hill mining district | Southeast | Georgia; South Carolina | Volcanogenic seafloor | Barite; Polymetallic sulfide | copper; gold; lead; silver |
| Cartersville barite | Southeast | Georgia | Basin brine path | Barite (replacement and bedded) | (none) |
| Kings Creek Mining District | Southeast | North Carolina; South Carolina | Volcanogenic seafloor | Barite; Polymetallic sulfide | copper; gold; lead; silver |
| Valley and Ridge barite (Brannon Springs area-Etowah and St. Clair Counties) | Southeast | Alabama | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; iron; lead; silver |
| Valley and Ridge barite (Pleasant Valley area-Calhoun County) | Southeast | Alabama | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; iron; lead; silver |
| Valley and Ridge barite (Sinks area-Bibb County) | Southeast | Alabama | Basin brine path | Barite (replacement and bedded); Zinc-lead (MVT and sedex) | copper; iron; lead; silver |
| Virginia barite | Southeast | Virginia | Basin brine path | Barite (replacement and bedded) | (none) |
| New Mexico Tertiary alkaline rocks and REE veins | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; thorium; uranium; yttrium |
| Big Bend alkaline rocks | Southwest | Texas | Hybrid magmatic REE / basin brine path | Fluorspar | lead; silver |
| Brown County celestite district | Southwest | Texas | Basin brine path | Barite (replacement and bedded); Strontium (replacement and bedded) | (none) |
| Burro Mountains | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Cooks Range-Fluorite Ridge fluorite-manganese | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | molybdenum |
| Gallinas Mountains Mining District | Southwest | New Mexico | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; silver; thorium; uranium |
| Greystone and Argenta Mines | Southwest | Nevada | Basin brine path | Barite (replacement and bedded) | (none) |
| Hansonburg district | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | copper; lead; silver |
| Iron Axis | Southwest | Utah | IOA-IOCG | Skarn iron | iron; phosphorus |
| Lemitar Mountains Mining District | Southwest | New Mexico | Magmatic REE | Carbonatite | copper; lead; magnetite; phosphorus; silver; thorium; uranium; vermiculite |
| Little Florida Mountains district | Southwest | New Mexico | Chemical weathering | Supergene manganese | (none) |
| Mogollon-Wilcox-Gila fluorite districts | Southwest | Arizona; New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Mountain Pass | Southwest | California; Nevada | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; uranium; vermiculite |
| New Mexico carbonatites | Southwest | New Mexico | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Northumberland district | Southwest | Nevada | Basin brine path | Barite (replacement and bedded) | (none) |
| Palm Park (Rincon district) | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Snake Mtns. | Southwest | Nevada | Basin brine path | Barite (replacement and bedded) | (none) |
| Southeast Mojave Desert | Southwest | California | Orogenic | Antimony | copper; gold; lead; silver |
| Texas-New Mexico alkaline belt | Southwest | New Mexico; Texas | Magmatic REE | Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; iron; lead; silver; thorium; uranium |
| Tortugas Mountains | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |
| Zuni Mountains fluorspar | Southwest | New Mexico | Hybrid magmatic REE / basin brine path | Fluorspar | (none) |