38 focus areas match these criteria.
| Focus area | Region | States | Mineral Systems | Deposit types | Commodities |
|---|---|---|---|---|---|
| Kuskokwim-White Mountains REE | Alaska | Alaska | Magmatic REE | Carbonatite | copper; gold; iron; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| 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 |
| Midcontinent Rift layered Ti-Fe in the Duluth Complex | North Central | Minnesota | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Midcontinent Rift mafic-ultramafic satellite intrusions | North Central | Michigan; Wisconsin | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Midcontinent Rift oxide-ultramafic intrusions (OUIs) | North Central | Minnesota | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Non-Midcontinent Rift mafic/ultramafic intrusions | North Central | Iowa; Michigan; Minnesota | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| Cornwall Mines | Northeast | Pennsylvania | IOA-IOCG | Polymetallic sulfide S-R-V; Skarn iron | copper; gold; iron; lead; molybdenum; phosphorus; silver; sulfur |
| Sanford Lake-Tahawas Mining District | Northeast | New York | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| 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 |
| Bitterroot Range anorthosite | Northwest | Montana | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| 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 |
| Missouri Breaks diatremes | Northwest | Montana | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| 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 |
| 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 |
| Sweet Grass Hills | Northwest | Montana | Magmatic REE | Carbonatite; Fluorspar; Peralkaline syenite/granite/rhyolite/alaskite/pegmatites | copper; gold; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| Central Laramie Range | Rocky Mountains | Wyoming | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; lead; phosphorus; selenium; silver |
| Medicine Bow Mountains | Rocky Mountains | Colorado; Wyoming | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; lead; phosphorus; selenium; 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 |
| Wet Mountains | Rocky Mountains | Colorado | Mafic magmatic | Iron-titanium oxide; Nickel-copper-PGE sulfide | iron; phosphorus; 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 | Mafic magmatic | Chromite; Iron-titanium oxide; Nickel-copper-PGE sulfide | copper; gold; iron; phosphorus; selenium; silver |
| 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 |
| Rison anomaly | South Central | Arkansas | Magmatic REE | Carbonatite | copper; magnetite; phosphorus; thorium; uranium; vermiculite; yttrium |
| SE Piedmont Rift Zones uranium (Coles Hill type) | Southeast | North Carolina; Virginia | IOA-IOCG | Albitite uranium | arsenic; barium; nickel; phosphorus; REE; scandium; uranium |
| Virginia nelsonites | Southeast | Virginia | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| Yadkin-Richland Mining District | Southeast | North Carolina | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |
| 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 |
| Lower Colorado River IOCG | Southwest | Arizona; California | IOA-IOCG | Iron oxide copper gold; Skarn iron | copper; gold; iron; phosphorus; selenium; uranium |
| 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 |
| San Gabriel Mountains anorthosite | Southwest | California | Mafic magmatic | Iron-titanium oxide | iron; phosphorus |